Prosecution Insights
Last updated: April 19, 2026
Application No. 17/444,282

MATERIAL SPREADER

Non-Final OA §102§103§112
Filed
Aug 02, 2021
Examiner
BOECKMANN, JASON J
Art Unit
3752
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Aob Products Company
OA Round
5 (Non-Final)
49%
Grant Probability
Moderate
5-6
OA Rounds
3y 9m
To Grant
78%
With Interview

Examiner Intelligence

Grants 49% of resolved cases
49%
Career Allow Rate
482 granted / 984 resolved
-21.0% vs TC avg
Strong +29% interview lift
Without
With
+28.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
57 currently pending
Career history
1041
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
46.0%
+6.0% vs TC avg
§102
31.4%
-8.6% vs TC avg
§112
18.8%
-21.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 984 resolved cases

Office Action

§102 §103 §112
DETAILED ACTION 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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 1/2/2026 has been entered. Claim Rejections - 35 USC § 112 Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 22-24 are rejected 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. Claim 22 recites the limitation "the feed" in line 2. There is insufficient antecedent basis for this limitation in the claim. Claims 23 and 24 are rejected for depending form claim 22. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 34 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Stevie (5,271,568) Regarding claim 34, Stevie A broadcast spreader for spreading granular material (fig 1), the broadcast spreader comprising: a frame (8); a hopper (1) supported by the frame and configured to hold the granular material; a spinner (7) supported by the frame, the spinner being configured to turn about a spinning axis for spreading the granular material from the hopper while the broadcast spreader is being carried by a user; a material feeder (13) supported by the frame and configured to feed the granular material from the hopper to the spinner, the material feeder including a feed gate (70); and a feed rate actuator (72) supported by the frame, the feed rate actuator configured to move the feed gate if the material feeder to change a rate at which the granular material is fed from the hopper to the spinner, wherein the feed rate actuator is a dial (72 is a dial that is moved by the thumb) arranged on an exterior of the broadcast spreader (fig 6), the dial configured to be rotated by the user about an actuation axis different from the spinning axis to change the rate at which granular material is fed from the hopper to the spinner (fig 6); the broadcast spreader being configured to be carried by the user while spreading the granular material, (fig 1, 6) Claim Rejections - 35 USC § 103 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. Claim(s) 35 is/are rejected under 35 U.S.C. 103 as being unpatentable over Stevie (5,271,568) Regarding claim 35, Stevie shows all aspects of the applicant’s invention as in claim 34, including a set of indicia on the dial and a single indicia on the frame, the dial is rotatable by the user relative to the single indicia on the frame to indicate a corresponding degree of openness of the material feeder for feeding the granular material from the hopper to the spinner but fails to disclose wherein the frame includes a set of indicia along the exterior of the broadcast spreader. Stevie does show indicia 49 on a button in a different embodiment (fig 2) The examiner notes that it would have been obvious to one of ordinary skill in the art at the time the application was effectively filed to add a set of indicia on the frame, in order to permit the setting of the device to the same position in sequential operation as taught by Stevie (col 3, liens 50-51). Claim(s) 1-8, 21-24, 26, 29, 30, 36-39 is/are rejected under 35 U.S.C. 103 as being unpatentable over Stevie (5,271,568) in view of Gunzel, Jr. et al. (5,119,993). Regarding claim 1, Stevie shows a broadcast spreader for spreading granular material (fig 1), the broadcast spreader comprising: a frame (8); a hopper (1) supported by the frame and configured to hold the granular material; a spinner (7) supported by the frame, the spinner being configured to turn about a spinning axis for spreading the granular material from the hopper while the broadcast spreader is being carried by a user; a material feeder (13) supported by the frame and configured to feed the granular material from the hopper to the spinner, the material feeder including a feed gate (70); and a feed rate actuator (72) supported by the frame and arraigned on an exterior of the broadcast spreader to be accessible to the user (fig 6), the feed rate actuator configured to be manually rotated by the user (72is a rotatable dial) move the feed gate to change a rate at which the granular material is fed from the hopper to the spinner by, the feed rate actuator being rotatable about an actuation axis different from the spinning axis (fig 6), the broadcast spreader being configured to be carried by the user while spreading the granular material (fig 6, But fails to disclose that the feed gate rotates about an axis. Gunzel, Jr. et al. shows a spreader that includes a rotatable feed gate (210), the feed gate including at least one opening therethrough (216). The feed gate is linear actuated by slide 340. Therefore, it would have been obvious to one of ordinary skill in the art at the time the application was effectively filed to use the rotatable feed of Gunzel, Jr. et al. that is rotated by a linear slide, in place of the sliding feed gate of Stevie in order to reduce the force required to operate the feed gate. Regarding claim 2, further comprising a driver (340 of Gunzel) operably connecting the feed rate actuator to the material feeder for adjusting the material feeder to change the rate at which the granular material is fed from the hopper to the spinner. Regarding claim 3, wherein the driver comprises at least a first gear (Gunzel 250a or 214). Regarding claim 4 wherein the driver comprises a second gear (350b, 350a or 340) in mesh with the first gear and rotatable responsive to rotation of the first gear. Regarding claim 5, wherein the driver includes a rack (340 or 214) in mesh with the second gear. Regarding claim 6, wherein the material feeder includes a feed gate (210) movable to adjust the material feeder to change the rate at which the granular material is fed from the hopper to the spinner, the rack being operatively connected to the feed gate (fig 3). Regarding claim 7, wherein the rack is movable conjointly with the feed gate (fig 3). Regarding claim 8, the above combination shows all aspects of the applicant’s invention as in claim 1 including wherein the spinner is configured to spread the granular material away from a front side of the spreader (fig 1), but fails to disclose and the feed rate actuator is located on a first lateral side of the spreader. However, the examiner notes that since no criticality is provided for the feed rate actuator being on the lateral side of the spreader. Therefore, it would have been obvious to one of ordinary skill in the art at the time the application was effectively filed to have the feed rate actuator be located on a first lateral side of the spreader as an obvious matter of design choice, since applicant has not disclosed that having it there solves any stated problem of is for any particular purpose and it appears that the invention would perform equally as well with the feed rate actuator be located on a first lateral side of the spreader Regarding claim 21, wherein the material feeder includes an opening (216, Gunzel) through which the granular material flows as the granular material flows toward the spinner , the feed rate actuator configured to adjust a size of the opening to change the rate at which the granular material is fed from the hopper to the spinner. Regarding claim 22, wherein the material feeder includes a material flow restrictor (13, Stevie) and the feed gate (210, Gunzel), the feed rate actuator configured to rotate the feed gate relative to the material flow restrictor to adjust the size of the opening to change the rate at which the granular material is fed from the hopper to the spinner. Regarding claim 23, wherein the feed gate is rotatable between a closed position and an open position (fig 7 and 8 of Gunzel), wherein in the closed position the feed gate blocks the granular material from being fed to the spinner, and wherein in the open position the feed gate permits the granular material to be fed to the spinner. Regarding claim 24, wherein the feed gate rotates in a first direction from the closed position toward the open position and rotates in a second direction different from the first direction from the open position toward the closed position (the feed gate of Gunzel rotes in this way). Regarding claim 26, wherein the opening is a first opening (13, Stevie), wherein the material feeder includes a second opening (216 Gunzel) through which the granular material flows as the granular material flows toward the spinner, the feed rate actuator configured to adjust a size of the second opening to change the rate at which the granular material is fed from the hopper to the spinner (fig 6-9 Gunzel). Regarding claim 29, wherein the second gear (350B) includes a first set of teeth in mesh with the first gear (214) and a second set of teeth (350a) different than the first set of teeth in mesh with the rack (340). Regarding claim 30, wherein the material feeder includes an opening (13) through which the granular material flows as the granular material flows from the hopper toward the spinner, the material feeder configured to provide continuous uninterrupted flow of the granular material present in the hopper through the opening toward the spinner (when the gate is open). Regarding claim 36, Stevie shows all aspects of the applicant’s invention as in claim 34, But fails to disclose wherein the material feeder includes a feed gate that defines at least one opening therethrough, wherein rotation of the dial by the user rotates the feed gate between a closed position and at least one open position. Gunzel, Jr. et al. shows a spreader that includes a rotatable feed gate (210), the feed gate including at least one opening therethrough (216). The feed gate is linear actuated by slide 340. Therefore, it would have been obvious to one of ordinary skill in the art at the time the application was effectively filed to use the rotatable feed gate with a through opening of Gunzel, Jr. et al. that is rotated by a linear slide, in place of the sliding feed gate of Stevie in order to reduce the force required to operate the feed gate. Regarding claim 37, Stevie, shows A broadcast spreader for spreading granular material (fig 1), the broadcast spreader comprising: a frame (8); a hopper (1) supported by the frame and configured to hold the granular material; a spinner (7) supported by the frame, the spinner being configured to spin for spreading the granular material from the hopper while the broadcast spreader is being carried by a user; a material feeder (13) supported by the frame and configured to feed the granular material from the hopper to the spinner, the material feeder including a feed gate (70) movable to adjust a degree of openness of the material feeder for feeding the granular material from the hopper to the spinner; and a feed rate actuator (72) supported by the frame, the feed rate actuator being rotatable about an actuation axis to move the feed gate of the material feeder to change a rate at which the granular material is fed from the hopper to the spinner (fig 6), wherein the actuation axis is nonparallel with the feed gate axis (fig 5); the broadcast spreader being configured to be carried by the user while spreading the granular material (fig 1, 5) But fails to disclose that the feed gate rotates about an axis. Gunzel, Jr. et al. shows a spreader that includes a rotatable feed gate (210), the feed gate including at least one opening therethrough (216). The feed gate is linear actuated by slide 340. Therefore, it would have been obvious to one of ordinary skill in the art at the time the application was effectively filed to use the rotatable feed of Gunzel, Jr. et al. that is rotated by a linear slide, in place of the sliding feed gate of Stevie in order to reduce the force required to operate the feed gate. Regarding claim 38, wherein the feed rate actuator is arranged on an exterior of the broadcast spreader to be accessible to the user (fig 6), the feed rate actuator configured to be manually rotated by the user about the actuation axis. Regarding claim 39, wherein the feed rate actuator is a dial (fig 6, element 72 is a dial moved by the thumb). Claim(s) 9 is/are rejected under 35 U.S.C. 103 as being unpatentable over Stevie (5,271,568) as modified by Gunzel, Jr. et al. (5,119,993), further in view of Pullara Jr. (8,191,804) Regarding claim 9, Stevie as modified above shows all aspects of the applicant’s invention as in claim 8, But fails to disclose a motor operatively connected to the spinner for automatically turning the spinner about the spinning axis; a power actuator configured to turn the motor or, the power actuator being movable independent of and relative to the feed gate to turn the motor on. Pullara Jr. shows a spreader powered by a motor operatively connected to a spinner for automatically turning the spinner about the spinning axis (fig 3); a power actuator (13) configured to turn the motor or, the power actuator being movable independent of and relative to the feed gate (11) to turn the motor on. Therefore, it would have been obvious to one of ordinary skill in the art at the time the application was effectively filed to use the motor and power actuator of Pullara Jr., in the spreader of Stevie as modified above, in order to make the spreader rotate automatically without the need to hand crank it. Additionally, it would have been obvious to one of ordinary skill in the art at the time the application was effectively filed to have the on/off actuator being located on a second lateral side of the spreader opposing the first lateral side as an obvious matter of design choice, since applicant has not disclosed that having it there solves any stated problem of is for any particular purpose and it appears that the invention would perform equally as well with the on/off actuator being located on a second lateral side of the spreader opposing the first lateral side. Claim(s) 10 is/are rejected under 35 U.S.C. 103 as being unpatentable over Stevie (5,271,568) as modified by Gunzel, Jr. et al. (5,119,993) and Pullara Jr. (8,191,804) above, further in view of Sagol et al. (2006/0016918) Regarding claim 10, Stevie as modified above, shows all aspects of the applicant’s invention as in claim 9, But fails to disclose a second actuator arranged on the exterior of the broadcast spreader to be accessible to the user, the second actuator configured to be moved by the user to adjust a speed at which the motor turns the spinner. Sagol et al. shows a spreader that includes an actuator arranged on the exterior of the broadcast spreader to be accessible to the user, the actuator configured to be moved by the user to adjust a speed at which the motor turns the spinner [0037]. Therefore, it would have been obvious to one of ordinary skill in the art at the time the application was effectively filed to add the adjustable power switch 24 of Sagol et al. to the spreader of Stevie as modified above, in order to be able to control the power lever of the motor as taught by Sagol et al. [0037]. Claim(s) 28, 31 is/are rejected under 35 U.S.C. 103 as being unpatentable over Stevie (5,271,568) in view of Pullara Jr. (8,191,804) Regarding claim 31, Stevie shows a broadcast spreader for spreading granular material (fig 1), the broadcast spreader comprising: a frame (8); a hopper (1) supported by the frame and configured to hold the granular material; a spinner (7) supported by the frame, the spinner being configured to turn about a spinning axis for spreading the granular material from the hopper while the broadcast spreader is being carried by a user; a material feeder (13) supported by the frame and configured to feed the granular material from the hopper to the spinner, the material feeder including a feed gate (70); a feed rate actuator (72) supported by the frame, the feed rate actuator configured to adjust the material feeder to change a rate at which the granular material is fed from the hopper to the spinner, the feed rate actuator being rotatable about an actuation axis different from the spinning axis to change the rate at which granular material is fed from the hopper to the spinner (fig 6), But fails to disclose a motor operatively connected to the spinner for automatically turning the spinner about the spinning axis; a power actuator configured to turn the motor or, the power actuator being movable independent of and relative to the feed gate to turn the motor on. Pullara Jr. shows a spreader powered by a motor operatively connected to a spinner for automatically turning the spinner about the spinning axis (fig 3); a power actuator (13) configured to turn the motor or, the power actuator being movable independent of and relative to the feed gate (11) to turn the motor on. Therefore, it would have been obvious to one of ordinary skill in the art at the time the application was effectively filed to use the motor and power actuator of Pullara Jr., in the spreader of Stevie, in order to make the spreader rotate automatically without the need to hand crank it. In the above combination rotation of the feed rate actuator is independent of operation of the motor turning the spinner; and the broadcast spreader being configured to be carried by the user while spreading the granular material. Regarding claim 28, wherein the feed rate actuator is arranged on an exterior of the broadcast spreader to be accessible to a user (fig6), the feed rate actuator configured to be manually rotated by the user about the actuation axis to change the rate at which granular material is fed from the hopper to the spinner. Claim(s) 32 is/are rejected under 35 U.S.C. 103 as being unpatentable over Stevie (5,271,568) as modified by Pullara Jr. (8,191,804) above, further in view of Gunzel, Jr. et al. (5,119,993). Regarding claim 32, Stevie as modified above, shows all aspects of the applicant’s invention as in claim 31, But fails to disclose wherein the material feeder includes a feed gate that defines at least one opening therethrough, wherein rotation of the dial by the user rotates the feed gate between a closed position and at least one open position. Gunzel, Jr. et al. shows a spreader that includes a rotatable feed gate (210), the feed gate including at least one opening therethrough (216). The feed gate is linear actuated by slide 340. Therefore, it would have been obvious to one of ordinary skill in the art at the time the application was effectively filed to use the rotatable feed gate with a through opening of Gunzel, Jr. et al. that is rotated by a linear slide, in place of the sliding feed gate of Stevie as modified above, in order to reduce the force required to operate the feed gate. Claim(s) 33 is/are rejected under 35 U.S.C. 103 as being unpatentable over Stevie (5,271,568) as modified by Pullara Jr. (8,191,804) above, further in view of Sagol et al. (2006/0016918) Regarding claim 32, Stevie as modified above, shows all aspects of the applicant’s invention as in claim 28, But fails to disclose a second actuator arranged on the exterior of the broadcast spreader to be accessible to the user, the second actuator configured to be moved by the user to adjust a speed at which the motor turns the spinner. Sagol et al. shows a spreader that includes an actuator arranged on the exterior of the broadcast spreader to be accessible to the user, the actuator configured to be moved by the user to adjust a speed at which the motor turns the spinner [0037]. Therefore, it would have been obvious to one of ordinary skill in the art at the time the application was effectively filed to add the adjustable power switch 24 of Sagol et al. to the spreader of Stevie as modified above, in order to be able to control the power lever of the motor as taught by Sagol et al. [0037]. Claim(s) 27 is/are rejected under 35 U.S.C. 103 as being unpatentable over Stevie (5,271,568) as modified by Gunzel, Jr. et al. (5,119,993) above, further in view of Bennie et al. (4,785,976). Regarding claim 27, Stevie as modified above shows all aspects of the applicant’s invention as in claim 21, but fails to disclose wherein the feed rate actuator is rotatable about the actuation axis in a first direction to increase the rate at which the granular material is fed from the hopper to the spinner, wherein the material feeder is configured to increase a length of the opening responsive to rotation of the feed rate actuator by a first distance in the first direction and is configured to increase a width of the opening while keeping the length of the opening constant responsive to further rotation of the feed rate actuator in the first direction after the first distance however, Bennie et al shows a feed gate wherein the feed gate (14) is rotatable about the actuation axis in a first direction to increase the rate at which the granular material is fed from the hopper to the spinner, wherein the material feeder is configured to increase a length of the opening responsive to rotation of the feed rate actuator by a first distance in the first direction (from closed to open) and is configured to increase a width of the opening while keeping the length of the opening constant responsive to further rotation of the feed gate in the first direction after the first distance (fig 3). Therefore, it would have been obvious to one of ordinary skill in the art at the time the application was effectively filed to shape the feed gate openings and the material feeder similar to that of Bennie et al. in order to better adjust the flow of granular material. Response to Arguments Applicant’s arguments with respect to the pending claims have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JASON J BOECKMANN whose telephone number is (571)272-2708. The examiner can normally be reached M-F 9am to 5pm. 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, Arthur Hall can be reached on (571) 270-1814. 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. /JASON J BOECKMANN/Primary Examiner, Art Unit 3752 3/23/2026
Read full office action

Prosecution Timeline

Aug 02, 2021
Application Filed
Aug 29, 2024
Non-Final Rejection — §102, §103, §112
Dec 04, 2024
Response Filed
Dec 13, 2024
Final Rejection — §102, §103, §112
Mar 17, 2025
Request for Continued Examination
Mar 18, 2025
Response after Non-Final Action
May 28, 2025
Non-Final Rejection — §102, §103, §112
Sep 02, 2025
Response Filed
Oct 01, 2025
Final Rejection — §102, §103, §112
Jan 02, 2026
Request for Continued Examination
Jan 08, 2026
Response after Non-Final Action
Mar 23, 2026
Non-Final Rejection — §102, §103, §112 (current)

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Prosecution Projections

5-6
Expected OA Rounds
49%
Grant Probability
78%
With Interview (+28.9%)
3y 9m
Median Time to Grant
High
PTA Risk
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