Prosecution Insights
Last updated: October 04, 2026
Application No. 18/853,118

SYSTEMS AND METHODS FOR CONTROLLING FREEZING USING GAS

Non-Final OA §103§112
Filed
Sep 30, 2024
Priority
Mar 28, 2022 — provisional 63/362,008 +1 more
Examiner
MARTIN, ELIZABETH J
Art Unit
3763
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Ether Innovations Inc.
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
6m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allowance Rate
757 granted / 961 resolved
+8.8% vs TC avg
Strong +21% interview lift
Without
With
+20.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
38 currently pending
Career history
978
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
50.4%
+10.4% vs TC avg
§102
19.2%
-20.8% vs TC avg
§112
28.1%
-11.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 961 resolved cases

Office Action

§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 . Election/Restrictions Applicant's election with traverse of Species B, claims 1-15, 17-21, 30-32 in the reply filed on 9/2/2026 is acknowledged. The traversal is on the ground(s) that the amendment to claims 1 and 13 defines a contribution over the prior art and qualifies as a Special Technical Feature. This is persuasive and the restriction is withdrawn. Drawings The drawings are objected to as failing to comply with 37 CFR 1.84(p)(5) because they do not include the following reference sign(s) mentioned in the description: 355. Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. Claim Interpretation The following is a quotation of 35 U.S.C. 112(f): (f) Element in Claim for a Combination. – An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The following is a quotation of pre-AIA 35 U.S.C. 112, sixth paragraph: An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The claims in this application are given their broadest reasonable interpretation using the plain meaning of the claim language in light of the specification as it would be understood by one of ordinary skill in the art. The broadest reasonable interpretation of a claim element (also commonly referred to as a claim limitation) is limited by the description in the specification when 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is invoked. As explained in MPEP § 2181, subsection I, claim limitations that meet the following three-prong test will be interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph: (A) the claim limitation uses the term “means” or “step” or a term used as a substitute for “means” that is a generic placeholder (also called a nonce term or a non-structural term having no specific structural meaning) for performing the claimed function; (B) the term “means” or “step” or the generic placeholder is modified by functional language, typically, but not always linked by the transition word “for” (e.g., “means for”) or another linking word or phrase, such as “configured to” or “so that”; and (C) the term “means” or “step” or the generic placeholder is not modified by sufficient structure, material, or acts for performing the claimed function. Use of the word “means” (or “step”) in a claim with functional language creates a rebuttable presumption that the claim limitation is to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites sufficient structure, material, or acts to entirely perform the recited function. Absence of the word “means” (or “step”) in a claim creates a rebuttable presumption that the claim limitation is not to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is not interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites function without reciting sufficient structure, material or acts to entirely perform the recited function. Claim limitations in this application that use the word “means” (or “step”) are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. Conversely, claim limitations in this application that do not use the word “means” (or “step”) are not being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. This application includes one or more claim limitations that do not use the word “means,” but are nonetheless being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, because the claim limitation(s) uses a generic placeholder that is coupled with functional language without reciting sufficient structure to perform the recited function and the generic placeholder is not preceded by a structural modifier. Such claim limitation(s) is/are: “anti-clogging mechanism” in claim 19. Because this/these claim limitation(s) is/are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, it/they is/are being interpreted to cover the corresponding structure described in the specification as performing the claimed function, and equivalents thereof. If applicant does not intend to have this/these limitation(s) interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, applicant may: (1) amend the claim limitation(s) to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph (e.g., by reciting sufficient structure to perform the claimed function); or (2) present a sufficient showing that the claim limitation(s) recite(s) sufficient structure to perform the claimed function so as to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claim 19 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Regarding claim 19, the claim recites the limitation “an anti-clogging mechanism.”. The term “mechanism” invokes a claim interpretation governed under 35 U.S.C. 112(f) (pre-AIA 35 U.S.C. 112, sixth paragraph), which requires a review of the specification to determine the appropriate structure, material or act to carry out the claimed limitation. However, the specification as originally filed, fails to describe a corresponding structure or technique by which the nozzle is anti-clogged. A mere restatement of the function does not suffice as a statement of structure. Thus, it does not appear that applicant had possession of the claimed invention because the specification does not disclose a structure which is capable of anti-clogging. When a description of the structure, material or act is not provided or is not sufficient to perform the entire claimed function, or no association between the structure and the claimed function can be found in the specification, the written description fails to clearly define the boundaries of the claim 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. Claim 19 is 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 limitation “anti-clogging mechanism” invokes 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. However, the written description fails to disclose the corresponding structure, material, or acts for performing the entire claimed function and to clearly link the structure, material, or acts to the function. The specification fails to described a structure which is capable of anti-clogging. Therefore, the claim is indefinite and is rejected under 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph. Applicant may: (a) Amend the claim so that the claim limitation will no longer be interpreted as a limitation under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph; (b) Amend the written description of the specification such that it expressly recites what structure, material, or acts perform the entire claimed function, without introducing any new matter (35 U.S.C. 132(a)); or (c) Amend the written description of the specification such that it clearly links the structure, material, or acts disclosed therein to the function recited in the claim, without introducing any new matter (35 U.S.C. 132(a)). If applicant is of the opinion that the written description of the specification already implicitly or inherently discloses the corresponding structure, material, or acts and clearly links them to the function so that one of ordinary skill in the art would recognize what structure, material, or acts perform the claimed function, applicant should clarify the record by either: (a) Amending the written description of the specification such that it expressly recites the corresponding structure, material, or acts for performing the claimed function and clearly links or associates the structure, material, or acts to the claimed function, without introducing any new matter (35 U.S.C. 132(a)); or (b) Stating on the record what the corresponding structure, material, or acts, which are implicitly or inherently set forth in the written description of the specification, perform the claimed function. For more information, see 37 CFR 1.75(d) and MPEP §§ 608.01(o) and 2181. 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. Claim(s) 1-4, 12-15, 17-21, 30 is/are rejected under 35 U.S.C. 103 as being unpatentable over Allaire (US 20190021372). Regarding claims 1 and 13, Allaire teaches an apparatus for freezing a substance (102, fluid, paragraph 0155) comprising: a frame (108); a freezing chamber (120) in fluid communication with a gas (gas, paragraph 0149); a removable freezing module (110) comprising at least one recess portion (164) and a bottom portion (118) in fluid communication with the freezing chamber (paragraph 0153); a controller (automatically controlled, paragraph 0198, 0200); a gas distribution assembly (170) in communication with the controller (paragraph 0198, 0200) and comprising an electronic valve (valve, paragraph 0012, 0198, 0200) for controlling a flow of the gas in the freezing chamber (paragraph 0012, 0198, 0200); a covering assembly movable (136a) along an axis substantially perpendicular to the removable freezing module (fig. 90); wherein the controller is programmed to control a flow of the gas in the freezing chamber by intermittently opening and closing the valve to optimize use of the gas (paragraph 0198, 0200, one of ordinary skill would recognize the controller described is capable of controlling the valve for gas use for the desired use). Further, it is understood, claim 1 includes an intended use recitation, for example “…is programmed to control a flow of the gas in the freezing chamber by intermittently opening and closing the valve to optimize use of the gas”. The applicant is reminded that a recitation with respect to the manner which a claimed apparatus is intended to be does not differentiate the claimed apparatus from a prior art apparatus satisfying the structural limitations of the claims, as is the case here. While features of an apparatus may be recited either structurally or functionally, the claims are directed to an apparatus must be distinguished from the prior art in terms of structure rather than function. Regarding claim 2, Allaire teaches the covering assembly comprising a top portion (area including 448) covering a top portion of the removable freezing module (paragraph 0190). Regarding claim 3, Allaire teaches the top portion comprising a thermic transfer assembly comprising protuberances (448) for increasing thermic transfer to the substance to be frozen (paragraph 0190). Regarding claim 4, Allaire teaches thermic transfer assembly being removable from the top portion (understood the plate could be removable). Regarding claim 12 and 13, Allaire teaches the freezing chamber being removable (unnumbered bolts provide for 108 being removable). Regarding claim 14, Allaire teaches the removable freezing chamber further comprising a bottom portion (174) having an aperture (understood a hole would be formed in 108 to pass 174, fig. 29) to allow passage of the gas distribution assembly. Regarding claim 15, Allaire teaches the removable freezing chamber further comprising a sealing member (176) for hermetically connecting with the gas distribution assembly. Regarding claim 17, Allaire teaches gas distribution system assembly comprising a nozzle (350) comprising a plurality of openings for letting gas flows in the removable freezing chamber, the openings being oriented to disperse gas through a plurality of distinct directions in the removable freezing chamber (paragraph 0176). Regarding claim 18, Allaire teaches the nozzle being surrounded by a sealing member (fig. 57) to maintain the removable freezing chamber hermetic during operations. Regarding claim 19, Allaire teaches the nozzle comprising an anti-clogging mechanism (maintenance and repair, paragraph 0176). Regarding claim 20, Allaire teaches the openings of the nozzle having predetermined dimensions to prevent formation of dry ice (openings of 378). Regarding claim 21, Allaire teaches all the limitations of claim 21 including a temperature sensor (sensor, paragraph 0012, 0198, 0200) within the gas freezing chamber, the temperature sensor being in communication with the controller (paragraph 0012, 0198, 0200): wherein the controller is being programmed to open or close the valve based on the readings of the temperature sensor and to optimize use of the flow of the gas (paragraph 0012, 0198, 0200). See rejection of claims 1 and 13. Regarding claim 30, Allaire teaches all the limitations of claim 30 including a bottom portion at least partially covered by a flexible material (the removable mould or freezing module or the removal facilitating mold as called throughout, comprising the freezing cells, would preferably be made from a material supporting extremely cold temperatures or large temperature differences and being thermally conductive, paragraph 0009, one of ordinary skill would recognize a flexible material is capable of being thermally conductive and well known in the art of ice making). Claim(s) 31-32 is/are rejected under 35 U.S.C. 103 as being unpatentable over Allaire (US 20190021372) as applied to claim 30 and in further view of Cran et al (US 20210381738). Regarding claim 31, Allaire teaches the invention as described above but fails to explicitly teach the flexible material being silicone. However, Cran teaches the flexible material being silicone (silicone, paragraph 0052) to provide an efficient ice maker. Therefore, it would have been obvious to a person skilled in the art before the effective filing date to modify the freezing module of Allaire to include the flexible material being silicone in view of the teachings of Cran to provide an efficient ice maker. Regarding claim 32, the combined teachings teach the flexible material covering all of the bottom portion of the recess portion (6 of Cran). Allowable Subject Matter Claim 5-11 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Reasons for Allowance The following is an examiner’s statement of reasons for allowance: Regarding claims 5, the subject matter which is considered to distinguish from the closest prior art of record, Allaire (US 20190021372). The prior art of record teaches a cover assembly in contrast to the claimed features of the covering assembly comprising a vertical expansion and retraction assembly for upwardly and downwardly moving the top portion. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ELIZABETH J MARTIN whose telephone number is (571)270-3840. The examiner can normally be reached 8:30-3:00 CT pm M-F. 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, Jerry-Daryl Fletcher can be reached at (571) 270-5054. 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. /ELIZABETH J MARTIN/Primary Examiner, Art Unit 3763
Read full office action

Prosecution Timeline

Sep 30, 2024
Application Filed
Sep 18, 2026
Non-Final Rejection mailed — §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12747905
REFRIGERATION APPLIANCE FAN
1y 10m to grant Granted Sep 29, 2026
Patent 12736271
MELTWATER MANAGEMENT SYSTEMS AND METHODS FOR COLD-CLIMATE HEAT PUMPS
2y 9m to grant Granted Sep 15, 2026
Patent 12723796
GAS AMOUNT ESTIMATION APPARATUS, GAS PROCESSING APPARATUS, TRANSPORTATION CONTAINER, GAS AMOUNT ESTIMATION METHOD, AND PROGRAM
2y 5m to grant Granted Sep 01, 2026
Patent 12723817
MANIFOLD FLUID MODULE
2y 1m to grant Granted Sep 01, 2026
Patent 12723795
SANITARY EVAPORATOR ASSEMBLY
1y 11m to grant Granted Sep 01, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
79%
Grant Probability
99%
With Interview (+20.8%)
2y 6m (~6m remaining)
Median Time to Grant
Low
PTA Risk
Based on 961 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month