Prosecution Insights
Last updated: October 25, 2026
Application No. 18/081,722

FILTER FOR USE IN COMMERCIAL SIZE BREWING DEVICES AND MACHINES

Final Rejection §112
Filed
Dec 15, 2022
Examiner
POPOVICS, ROBERT J
Art Unit
1763
Tech Center
1700 — Chemical & Materials Engineering
Assignee
None recorded (individual inventor: Julie L. Hendrix Palmer)
OA Round
2 (Final)
55%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants 55% of resolved cases
55%
Career Allowance Rate
419 granted / 757 resolved
-9.6% vs TC avg
Strong +23% interview lift
Without
With
+23.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
20 currently pending
Career history
779
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
30.5%
-9.5% vs TC avg
§102
20.7%
-19.3% vs TC avg
§112
42.2%
+2.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 757 resolved cases

Office Action

§112
DETAILED ACTION Request for Internet Authorization Form The Examiner spoke with Hoang Ngo (42,932) on 20 March 2026 and requested that a communication by internet authorization form be made of record. The form was not filed. Claim Rejections - 35 USC § 112(a) 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. Claims 1-22 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. The term “extremum” as was added to claims 1 (three occurrences), 5,6 and independent claim 11 (three occurrences). This term does not appear within the originally filed disclosure, and does not appear to find basis in the originally filed disclosure. It is seen to constitute prohibited new matter. Dependent claims 2,13,19 and independent claim 21 now specify “a material comprising gold”. This language is unsupported by the originally filed disclosure, and is seen to constitute prohibited new matter. In this regard, it is noted that Applicant’s originally filed specification teaches: [0025] Sections 122 are interposed between sections 120 and extend from circular perimeter-defining element 22 to rim support element 42.Sections 122 are formed of gold tone metal mesh in the nature of a gold coffee filter. Sections 122 are arcuate-ended trapeziums having linear sides 180 and 182 that are angled away from each other as measured from base 20 to rim 40, and arcuate ends 190 and 192 located respectively on circular perimeter-defining element 22 and on rim 40. A “gold tone” metal mesh cannot be equated with “a material comprising gold”. Claim Rejections - 35 USC § 112(b) 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. Claims 1-20 are rejected under 35 U.S.C. 112(b), as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor, regards as the invention. In claims 1,5,6 and 11, it is unclear what Applicant intends by “extremum”. This term appears to apply to mathematical functions, which are not claimed or disclosed. This language is considered misdescriptive, serving to confuse readers. Prior Art of Interest BUFKIN (US 3,718,084) and MONCRIEF (Des. 253,082). BUFKIN and MONCRIEF each disclose a filter for coffee PNG media_image1.png 1144 726 media_image1.png Greyscale PNG media_image2.png 654 734 media_image2.png Greyscale Drawings The drawings are objected to under 37 CFR 1.83(a). The drawings must show every feature of the invention specified in the claims. Therefore, the “trapeziums” as recited in claims 4 and 15, must be shown or the feature(s) canceled from the claim(s). No new matter should be entered. 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. The figure or figure number of an amended drawing should not be labeled as “amended.” If a drawing figure is to be canceled, the appropriate figure must be removed from the replacement sheet, and where necessary, the remaining figures must be renumbered and appropriate changes made to the brief description of the several views of the drawings for consistency. Additional replacement sheets may be necessary to show the renumbering of the remaining figures. 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. Response to Arguments of 25 February 2026 Applicant’s arguments have been effective at removing the rejections no longer appearing above. The claim amendments have raised new issues. 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 ROBERT JAMES POPOVICS whose telephone number is (571) 272-1164. The examiner can normally be reached from 10:00 AM - 6:00 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, JOSEPH DEL SOLE can be reached at (571) 272-1130. 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. /ROBERT J POPOVICS/ Primary Examiner Art Unit 1763
Read full office action

Prosecution Timeline

Dec 15, 2022
Application Filed
Jul 05, 2023
Response after Non-Final Action
Sep 25, 2025
Non-Final Rejection mailed — §112
Feb 25, 2026
Response Filed
Jun 03, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12766444
FLUID STRAINER
2y 10m to grant Granted Oct 20, 2026
Patent 12767559
Filtering Device Arranged Outside Water Outlet Piece
3y 2m to grant Granted Oct 20, 2026
Patent 12766446
Filter Sector Assembly of a Disc Filter
2y 10m to grant Granted Oct 20, 2026
Patent 12752222
CANDLE FILTER DEVICE
3y 8m to grant Granted Oct 06, 2026
Patent 12734467
PASSIVE SELF-CLEANING FILTRATION METHOD AND APPARATUS
2y 9m to grant Granted Sep 15, 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

3-4
Expected OA Rounds
55%
Grant Probability
78%
With Interview (+23.1%)
3y 5m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 757 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