Prosecution Insights
Last updated: April 19, 2026
Application No. 18/689,221

Method of Repairing a Defect and Device

Final Rejection §103§112
Filed
Mar 05, 2024
Examiner
BAREFORD, KATHERINE A
Art Unit
1718
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Rawwater Applied Technology Limited
OA Round
2 (Final)
13%
Grant Probability
At Risk
3-4
OA Rounds
4y 11m
To Grant
42%
With Interview

Examiner Intelligence

Grants only 13% of cases
13%
Career Allow Rate
123 granted / 925 resolved
-51.7% vs TC avg
Strong +28% interview lift
Without
With
+28.3%
Interview Lift
resolved cases with interview
Typical timeline
4y 11m
Avg Prosecution
77 currently pending
Career history
1002
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
43.6%
+3.6% vs TC avg
§102
9.6%
-30.4% vs TC avg
§112
35.8%
-4.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 925 resolved cases

Office Action

§103 §112
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . The amendment of October 6, 2025 has been received and entered. With the entry of the amendment, claims 13-23 and 25-26 are withdrawn and claims 1-12 and 24 are pending for examination. Election/Restrictions Applicant’s election without traverse of Group I, claims 1-12 and 24 in the reply filed on June 12, 2025 is acknowledged. Claims 13-23 and 25-26 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on June 12, 2025. Claim Rejections - 35 USC § 112 The rejection of claim 24 under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention is withdrawn due to the amendments of October 6, 2025 clarifying the claim language. Claim Interpretation It is noted that applicant defines the bolus as a discrete, contiguous quantity of at least partially liquid alloy that is distinct from a spray of at least partially liquid alloy (note page 3, lines 3-10 of the specification as filed). Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 1-12 are rejected under 35 U.S.C. 103 as being unpatentable over Myerberg et al (US 2017/0252808) in view of Sickbert (US 3352351), Morrison (US 1759269) and WO 2020/002886 (herein ‘886, used as provided with the IDS of May 7, 2024). Claim 1: Myerberg teaches a method and apparatus for applying liquid metal (which can be a liquid metal alloy) to a surface (build plate) (note abstract, figure 1, 0047). The method includes providing a bolus (a discrete contiguous quantity of material) of liquid metal/alloy in a charge chamber (note 102, 110, 302, 502 in the figures), where the charge chamber has an outlet at the bottom of the chamber (note orifice 112) and a closable pressure inlet (note port 118 with valve 106) (note figures 1, 3, 5, 0037, 0039, 0047). Pressurized fluid (gas) is introduced into the charge chamber via the pressure inlet and accelerates the bolus such that the bolus is ejected from the charge chamber via the outlet (note figures 1, 3, 5, 0037, 0044, 0101). The liquid metal/alloy can be ejected as a constant/continuous stream/mass (single since a stream from the outlet) (note 0101, 0019, 0021). The bolus is directed along a pathway between the charge chamber and the surface such that the bolus contacts the surface to form a build up of the bolus material (note from path metal/alloy would take to build up as shown in figure 1, 0037, 0050, 0101). (A) As to the outlet also being closeable, this is not specifically provided by Myerberg. Myerberg does indicate additional elements can be in the chamber (note figure 3, 310, 0068). Sickbert describes a chamber system where liquid metal/alloy is fed into a chamber/ladle 26 and then exits out an outlet 28 at the bottom of the chamber to apply the metal/alloy to a surface (67) to build up metal/alloy (note figure 1, column 1, lines 30-45, column 3, lines 45-60, column 5, lines 35-50, column 6, lines 30-60). Sickbert indicates providing that the outlet is closable (note rod 29) where the outlet is opened when the exit of metal desired (note column 3, lines 50-60, column 6, lines 40-50). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Myerberg to specifically provide that the outlet is closeable as suggested by Sickbert to help prevent metal/alloy from exiting when not desired, since Myerberg shows a chamber containing liquid metal/alloy with an outlet at the bottom through which the metal exits, and Sickbert teaches that in a similar structure, it is known to provide that the outlet is closeable to prevent liquid metal/alloy from exiting when not desired. (B) Furthermore, as to the bolus comprises the entire quantity of the at least partially liquid alloy in the charge chamber, and is ejected as a single, continuous mass, Myerberg shows the chamber (charge chamber 502, 110, for example) containing a quantity liquid metal/alloy held in the chamber (note0037, 0057, 0080). The liquid metal/alloy can be ejected as a constant stream, that is, as a single, continuous mass (note 0019, 0021, 0101). As to the bolus being the entire quantity of the liquid metal/alloy in the changer chamber and ejecting this as a single continuous mass, Myerberg describes that movement of metal into the chamber (110, etc.) can be separate from actuation of valve 106 (providing gas to discharge the metal) (note 0038, which also describes that replenishment of metal can be provided), and metal can be provided from the metal/media supply 108 into the chamber 110 while valve 106 providing the gas/pressurized fluid is closed (note 0046). Sickbert also shows how molten metal can be provided from a first supply (funnel 13) into a chamber (ladle 26, which can also be considered a charge chamber) out of which molten metal will flow (in a controlled fashion where rod 16 stops flow to ladle 26 (note figure 1, column 3, lines 25-75), where the ladle/chamber 26 is filled to a desired height before the outlet in the chamber is opened to allow a stream of molten metal to flow through(column 6, lines 30-50). The ladle/chamber 26/26’ can be covered after filling where a source of pressure gas if supplied to the chamber/ladle to further control dispensing the molten metal (note column 7, lines 40-65, figure 4). Additionally, Morrison describes how molten metal can be provided form a supply (furnace 7) and fed into a charge chamber/ ladle 11 in a controlled amount (based on size of chamber 11), where a single bolus/controlled amount of metal (that is the entire quantity of liquid in the charge chamber) is provided, and thereafter the bolus is ejected as a single continuous mass (the lower chamber gate/outlet is opened, which would allow the entire amount of liquid to continuously dispense, which is further indicated by providing the charge chamber/ladle 11 is approximately equal to the capacity of the molds being filled, where it will travel on release from the ladle as a cohesive body to the mold, to force into all parts of the mold, (note page 3, line 125 to page 4, line 5, page 1, lines 95-100), and therefore it would be at least suggested that the entire metal content of the chamber/ladle 11 would be released as a single continuous mass, as the amount needed for molding provided in the chamber, note also the figure, page 2, line 70-110). In Morrison, the dispensed metal is directed through a pathway to the desired application location (mold) (note the figure, page 2, lines 105-130). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Myerberg in view of Sickbert to provide that the bolus comprises the entire quantity of the liquid alloy held in the charge chamber, and is ejected as a single continuous mass as suggested by Morrison with an expectation of predictably acceptable results, since Myerberg indicates that the charge chamber can be filled separately from the gas/pressurized fluid use and dispensing can be in continuous stream when dispensing, and Sickbert also indicates filling a charge chamber that can also use gas pressure for dispensing and then dispensing, indicating that continuous filling of metal into the charge chamber not required, and Morrison teaches that it would be conventional to provide filling of a charge chamber that allows dispensing of molten metal, and then dispensing all molten metal in the chamber in one single continuous mass (cohesive body) to the desired location, thus suggesting that in Myerberg pressure can be applied to the chamber to continuously dispense all metal (a bolus) in the chamber in a single continuous mass, and then stop the gas pressure, and refill the chamber for the next dispensing with an expectation of predictably acceptable results as a known way to provide molten metal for use in a controlled amount. (C) Furthermore, as to using the metal/alloy to repair a defect in a surface by directing the ejected bolus along the pathway such that the surface the bolus contacts is the defect in the surface and solidifying the at least partially liquid alloy while it contacts the defect, Myerberg does not teach that the surface to be provided with the applied metal/alloy is a defect containing surface. It is understood that the metal/alloy applied will cool/solidify with an expectation of predictably acceptable results, since the metal/alloy would be applied and no more heating required to keep liquid. Myerberg indicates that pressure can be controlled with pulses to control liquid metal droplet shape and size (note 0088) or pressure controlled to deliver a constant stream of metal to be applied (note 0101) and a range of pressure can be provided (note 0044). ‘886 indicates that it is desirable to provide sealing (repairing) a surface using an acceleration of liquid metal/alloy to a surface by a propellant and applying the liquid metal/alloy to the surface, where the surface can have a defect to be sealed (such as holes, cracks, fissures, etc.) where the metal/alloy is applied to defects (note page 3, lines 10-35, page 5, lines 1-5, page 8, lines 30-35, page 10, lines 1-10), where the propellant can be a gas (page 9, lines 19-25) and can be pressurized (compressed air, for example) (note page 25, lines 20-30). On contact with the surface, the liquid metal/alloy will cool and solidify, forming a coating (note column 3, lines 19-25). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Myerberg in view of Sickbert and Morrison to provide that the application of liquid metal/alloy described by Myberberg is used to repair a defect in a surface by directing the ejected bolus along the pathway such that the surface the bolus contacts is the defect in the surface and solidifying the at least partially liquid alloy when it contacts the defect as suggested by ‘886 to provide a desirable further use for the process of Myerberg, since Myerberg indicates how liquid metal/alloy can be accelerated and directed using a pressurized gas to be directed at/contact and build up on a surface and ‘886 indicates that a liquid metal/alloy can be directed is onto a defect in a surface (so a desirable surface to use) in order to seal/repair the defect, where the metal/alloy can be directed using pressurized gas and where the liquid metal/alloy will cool/solidify in contact with the surface/defect to form a coating/sealing. Claims 2, 4: As to also providing a delivery line that defines at least a portion of the pathway, where the delivery line acts to limit heat loss from the bolus and provide heat to the bolus, Morrison also notes that a portion of the pathway in the form of a delivery line (guard 15) can be provided after the outlet through which the metal flows towards where to be deposited can be provided after the chamber to help prevent reduction in temperature (limit heat loss from the bolus) (note the figure, page 2, lines 110-130). Claim 3: as to the delivery line positioned by a robot, Myerberg provides that the nozzle system positioned by a robot (note figure 1, robotics 128, 0051), and Morrison indicates that the delivery line (guard 15) can be attached to the chamber/outlet (note the figure, and column 3, lines 75-85, note attachment together),and therefore, when providing the chamber/outlet attached to the delivery line as shown by Morrisoin, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention that the positioning robot would also position the delivery line as well, with an expectation of predictably acceptable results. Claim 5: Meyerberg would teach that at least that a solid metal/alloy can be melted and then introduced into the chamber (note figure 1, 0053-0054), or solid metal/alloy can be introduced in the chamber and melted in situ (0057). Claim 6: Myerberg would teach that the pressurized fluid/gas can be at a pressure in the range of “above about 550 kPa” (so above about 5.5 bar) (note 0044). This would overlap the range claimed and therefore it would have been obvious to optimize from this range, giving a value in the claimed range. As well, ‘886 would note the use of heated gas and compressed gas (note page 25, lines 20-30). Claim 7: Myerberg teaches the use of metal alloys in general (note 0047), and ‘886 suggests the use of alloys of bismuth, indium, antimony, tin, lead and gallium (note page 26, lines 1-10), giving suggested alloys to use. Claim 8: As to the order of opening the outlet and pressure inlets, Myerberg describes opening the pressure inlet to provide pressure to the bolus so that ejection occurs (note 0037). Sickbert as discussed for claim 1 above, would suggest providing a closable outlet/orifice that is opened to allow exit of liquid metal/alloy from the outlet. As to the specific order of when the pressure inlet opened vs. the outlet opening, as indicated by In re Burhans, 154 F.2d 690, 69 USPQ 330 (CCPA 1946), selection of any order of performing process steps is prima facie obvious in the absence of new or unexpected results, and therefore, any of the options claimed would be obvious, as no new or unexpected result would occur. Claim 9: ‘886 would suggest that the defect to be repaired can be an active leak (note page 3, lines 25-35). Claim 10: ‘886 would further suggest a cleaning step where cleaning fluid (the propellant gas) can be delivered to the defect before sealing to remove contaminants, etc. and improve binding of metallic composition to the surface (note column 7, lines 1-10, column 9, lines 5-25), where at the least this would suggest that a gaseous fluid acting as a cleaning fluid can be desirably applied to the surface before performing the repairing process to desirably clean the surface to remove contaminants and improve binding of the metal/alloy to the surface. Claim 11: ‘886 provides that it is desirable for the metal/alloy to penetrate the defect to prevent cavities between the surface and applied material that act as points of weakness (note page 8, line 30 to page 9, line 5), suggesting to provide the conditions so as to provide penetration of the defect to avoid the described issues. Claim 12: ‘886 indicates that it is desirable to place a mold around the defect prior to applying the liquid metal/alloy to the surface for the benefit of holding the metal/alloy in contact with the defect (note page 10, lines 1-25), and Myerberg also notes the idea of providing a first surrounding border and then filling in the pneumatically ejected metal/alloy to speed the manufacturing process (note 0101), which can be considered as providing a mold around the desirably coated surface first. Claims 2-4 are optionally rejected under 35 U.S.C. 103 as being unpatentable over Myerberg in view of Sickbert, Morrison and ‘886 as applied to claims 1 and 5-12 above, and further in view of Mark (US 2017/0087632). Claims 2, 4: As to also providing a delivery line that defines at least a portion of the pathway, where the delivery line acts to limit heat loss from the bolus and provide heat to the bolus, Morrison also notes that a pathway with a delivery line (guard 15) provide after the chamber can be used to help prevent reduction in temperature (note the figure, page 2, lines 110-130). Mark provides how application of a molten metal/alloy jet can be provided to apply to a build plate (note figure 1, 6, 0035-0036), where the metal can be forced out to orifice 202 using gas pressure (note figure 4, 0044). As shown in figure 6 (note marked up copy below) there can be a first outlet, then a tube and second outlet at 202 (note figures 6, 7, which tube can be considered a pathway/delivery line from the first outlet), where it is indicated that the tube area can be heated with a heater 204 to help maintain the material molten (note 0044). PNG media_image1.png 604 438 media_image1.png Greyscale Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Myerberg in view of Sickbert, Morrison and ‘886 to provide that the chamber/applicator system is desirably structured to have a first chamber area and (first) closable outlet that would have the pressure inlet as well, and then have a further path/delivery line with a second outlet to allow for further heating to help keep the material molten (limit heat loss from bolus and provide heat to bolus) as suggested by Mark with an expectation of predictably acceptable results as Myerberg indicates the desire to eject liquid metal/alloy and even notes the chamber can be heated to prevent solidifying (note figure 3, 0073), Morrison also indicates the desire to control temperature in a delivery pathway from the chamber, and Mark, as discussed above, notes a format for such desirable heating can also include further pathway/delivery line flow. Claim 3: as to the delivery line positioned by a robot, Myerberg provides that the nozzle system positioned by a robot (note figure 1, robotics 128, 0051), and therefore, when providing the chamber/nozzle attached to the delivery line as shown by Mark, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention that the positioning robot would also position the delivery line as well, with an expectation of predictably acceptable results. Claim 24 is rejected under 35 U.S.C. 103 as being unpatentable over Myerberg et al (US 2017/0252808) in view of Morrison (US 1759269) and WO 2020/002886 (herein ‘886, used as provided with the IDS of May 7, 2024). Claim 24: Myerberg teaches a method and apparatus for applying liquid metal (which can be a liquid metal alloy) to a surface (build plate) (note abstract, figure 1, 0047). The method includes providing a bolus (a quantity of material) of liquid metal/alloy in a charge chamber (note 102, 110, 302, 502 in the figures, such that a charge chamber for holding the alloy is provided), where the charge chamber has an outlet at the bottom of the chamber (note orifice 112) and a closable pressure inlet (note port 118 with valve 106) (note figures 1, 3, 5, 0037, 0039, 0047). Pressurized fluid (gas) is introduced into the charge chamber via the pressure inlet and accelerates the bolus such that the bolus is ejected from the charge chamber via the outlet (note figures 1, 3, 5, 0037, 0044, 0101). The pressurized gas is provided into pressure inlet by a pressure line in fluid communication with the pressure inlet and connectable to a pressurized fluid (gas) source (note figure 1, 0027, 0044). The bolus is directed along a pathway between the charge chamber and the surface such that the bolus contacts the surface to form a build up of the bolus material (note from path metal/alloy would take to build up as shown in figure 1, 0037, 0050, 0101). (A) Furthermore, as to the bolus comprises the entire quantity of the at least partially liquid alloy in the charge chamber, and is ejected as a single, contiguous mass, Myerberg shows the chamber (charge chamber 502, 110, for example) containing a quantity liquid metal/alloy held in the chamber (note0037, 0057, 0080). The liquid metal/alloy can be ejected as a constant stream, that is, as a single, continuous, contiguous mass (note 0019, 0021, 0101). As to the bolus being the entire quantity of the liquid metal/alloy in the changer chamber and ejecting this as a single continuous, contiguous mass, Myerberg describes that movement of metal into the chamber (110, etc.) can be separate from actuation of valve 106 (providing gas to discharge the metal) (note 0038, which also describes that replenishment of metal can be provided), and metal can be provided from the metal/media supply 108 into the chamber 110 while valve 106 providing the gas/pressurized fluid is closed (note 0046). Additionally, Morrison describes how molten metal can be provided form a supply (furnace 7) and fed into a charge chamber/ ladle 11 in a controlled amount (based on size of chamber 11), where a single bolus/controlled amount of metal (that is the entire quantity of liquid in the charge chamber) is provided, and thereafter the bolus is ejected as a single continuous, contiguous mass (the lower chamber gate/outlet is opened, which would allow the entire amount of liquid to continuously dispense, which is further indicated by providing the charge chamber/ladle 11 is approximately equal to the capacity of the molds being filled, where it will travel on release from the ladle as a cohesive body to the mold, to force into all parts of the mold, (note page 3, line 125 to page 4, line 5, page 1, lines 95-100), and therefore it would be at least suggested that the entire metal content of the chamber/ladle 11 would be released as a single continuous, contiguous mass, as the amount needed for molding provided in the chamber, note also the figure, page 2, line 70-110). In Morrison, the dispensed metal is directed through a pathway to the desired application location (mold) (note the figure, page 2, lines 105-130). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Myerberg to provide that the bolus comprises the entire quantity of the liquid alloy held in the charge chamber, and is ejected as a single continuous mass as suggested by Morrison with an expectation of predictably acceptable results, since Myerberg indicates that the charge chamber can be filled separately from the gas/pressurized fluid use and dispensing can be in continuous stream when dispensing, and Morrison teaches that it would be conventional to provide filling of a charge chamber that allows dispensing of molten metal, and then dispensing all molten metal in the chamber in one single continuous, contiguous mass (cohesive body) to the desired location, thus suggesting that in Myerberg pressure can be applied to the chamber to continuously dispense all metal (a bolus) in the chamber in a single continuous, contiguous mass, and then stop the gas pressure, and refill the chamber for the next dispensing with an expectation of predictably acceptable results as a known way to provide molten metal for use in a controlled amount. (B) Furthermore, as to using the metal/alloy to repair a defect in a surface by directing the ejected bolus along the pathway such that the surface the bolus contacts is the defect in the surface and solidifying the at least partially liquid alloy while it contacts the defect, Myerberg does not teach that the surface to be provided with the applied metal/alloy is a defect containing surface. It is understood that the metal/alloy applied will cool/solidify with an expectation of predictably acceptable results, since the metal/alloy would be applied and no more heating required to keep liquid. Myerberg indicates that pressure can be controlled with pulses to control liquid metal droplet shape and size (note 0088) or pressure controlled to deliver a constant stream of metal to be applied (note 0101) and a range of pressure can be provided (note 0044). ‘886 indicates that it is desirable to provide sealing (repairing) a surface using an acceleration of liquid metal/alloy to a surface by a propellant and applying the liquid metal/alloy to the surface, where the surface can have a defect to be sealed (such as holes, cracks, fissures, etc.) where the metal/alloy is applied to defects (note page 3, lines 10-35, page 5, lines 1-5, page 8, lines 30-35, page 10, lines 1-10), where the propellant can be a gas (page 9, lines 19-25) and can be pressurized (compressed air, for example) (note page 25, lines 20-30). On contact with the surface, the liquid metal/alloy will cool and solidify, forming a coating (note column 3, lines 19-25). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Myerberg in view of Morrison to provide that the apparatus and application of liquid metal/alloy described by Myberberg in view of Morrison is used to repair a defect in a surface by directing the ejected bolus along the pathway such that the surface the bolus contacts is the defect in the surface and solidifying the at least partially liquid alloy when it contacts the defect as suggested by ‘886 to provide a desirable further use for the process of Myerberg, since Myerberg indicates how liquid metal/alloy can be accelerated and directed using a pressurized gas to be directed at/contact and build up on a surface and ‘886 indicates that a liquid metal/alloy can be directed is onto a defect in a surface (so a desirable surface to use) in order to seal/repair the defect, where the metal/alloy can be directed using pressurized gas and where the liquid metal/alloy will cool/solidify in contact with the surface/defect to form a coating/sealing. This would provide at least all the features of claim 24. Response to Arguments Applicant's arguments filed October 6, 2025 have been fully considered. Note the adjustment to the rejections, with the addition of the new reference to Morrison, due to the amendments to the claims. As to the 35 USC 103 rejections, it is argued that Myerberg provided liquid metal droplets, not the single continuous mass. It is argued that Myerberg does not provide the other features of the bolus comprises the entire quantity of the at least partially liquid alloy held in the charge chamber, or the ejection as a single continuous mass. It is argued that Sickbert and ‘866 also do not provide these features, and Mark also does not provide these features. The Examiner has reviewed these arguments, however, the rejections above are maintained. As to Myerberg providing droplets rather than a single continuous mass, while Myerberg gives the option of providing droplets, it also specifically indicates how when using the pneumatic system (gas pressure which is what is described for the present claims), a continuous stream can be provided instead of droplets (note 0019, where pneumatic ejection can deliver a stream of liquid metal from the nozzle rather than discrete droplets, and a stream would be considered a single continuous mass, also note 0021, 0097, 0101 as to this, for example). Note that the newly cited Morrison also would indicate this with releasing the metal charge from the chamber/ladle in a cohesive body (note page 3, lines 125-130). As to Sickbert not providing the bolus as claimed, the acceleration is suggested by Myerberg, the single continuous mass would be provided by Myerberg and Morrison, and the bolus as the entire quantity in the chamber is suggested by Morrison. The Examiner notes that Sickbert provides how to provide a closable outlet for ejection of molten metal from a chamber, as discussed in the rejection above, and also notes that pressure gas (fluid) can be used to help eject the molten metal through the outlet (note column 7, lines 50-65). It also indicates a stream of molten metal will come out (also indicating a single continuous mass rather than droplets) (note column 6, lines 40-45). As to ‘866, it suggests the use of an acceleration of liquid metal/alloy to a surface by propellent to seal defects, and such acceleration would be provided by Myerberg. The combination of Sickbert and ‘866 with Myerberg does not go against the teachings of Myerberg, since as to Sickbert, Myerberg is not limited to droplets as discussed above, but rather allows for a continuous stream, as also provided by Sickbert, and as to ‘866, ‘866 would suggest a use for a flow of molten metal, which is provided by Myerberg. Thus, the combination of references suggests the claimed features. Mark is cited for the features of claim 2-4. As to claim 24, the combination of references used would provide all features claims as discussed in the rejection above, and the discussion of the use of references above (where Sickbert not used for the features claimed for claim 24). Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to KATHERINE A BAREFORD whose telephone number is (571)272-1413. The examiner can normally be reached M-Th 6:00 am -3:30 pm, 2nd F 6:00 am -2:30 pm. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, GORDON BALDWIN can be reached at 571-272-5166. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /KATHERINE A BAREFORD/Primary Examiner, Art Unit 1718
Read full office action

Prosecution Timeline

Mar 05, 2024
Application Filed
Jun 26, 2025
Non-Final Rejection — §103, §112
Oct 06, 2025
Response Filed
Feb 10, 2026
Final Rejection — §103, §112 (current)

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Patent 12350789
FLUID JET NOZZLES AND METHODS OF MAKING SAME
2y 5m to grant Granted Jul 08, 2025
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
13%
Grant Probability
42%
With Interview (+28.3%)
4y 11m
Median Time to Grant
Moderate
PTA Risk
Based on 925 resolved cases by this examiner. Grant probability derived from career allow rate.

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