Prosecution Insights
Last updated: October 02, 2026
Application No. 18/757,091

PRINTING DEVICE

Final Rejection §112
Filed
Jun 27, 2024
Priority
Jun 28, 2023 — JP 2023-105821
Examiner
SEO, JUSTIN
Art Unit
2853
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Brother Kogyo Kabushiki Kaisha
OA Round
2 (Final)
82%
Grant Probability
Favorable
3-4
OA Rounds
2m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
544 granted / 662 resolved
+14.2% vs TC avg
Strong +16% interview lift
Without
With
+16.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
18 currently pending
Career history
676
Total Applications
across all art units

Statute-Specific Performance

§101
2.3%
-37.7% vs TC avg
§103
42.3%
+2.3% vs TC avg
§102
27.2%
-12.8% vs TC avg
§112
19.6%
-20.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 662 resolved cases

Office Action

§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 . Response to Arguments Applicant’s arguments, filed 8/11/26, with respect to the rejection(s) of claim(s) 1-4, 6, and 8-9 have been fully considered and are persuasive. Therefore, the rejection has been withdrawn. Claim Objections Claim 1 is objected to because of the following informalities: “the first opening” and “the second opening” lack antecedent basis. Appropriate correction is required. 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 1-2, 4, and 6 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. Regarding claim 1, the antecedent basis of “at least one opening” in “wherein the housing has at least one opening communicating with the chamber,” is unclear. Dependent claims 2-4, 6, and 8-9 are considered rejected for incorporating defects from rejected parent claim. Regarding claim 2, the antecedent basis of “an air blower” is unclear. Dependent claim 3 is considered rejected for incorporating defects from rejected parent claim. Regarding claim 4, the antecedent basis of “a controller” is unclear. Dependent claims 5 and 6 are considered rejected for incorporating defects from rejected parent claim. Regarding claim 6, the antecedent basis of “an air blower” is unclear. Note: with the amendments to claim 1, applicant is advised to update the antecedent basis in the withdrawn claims so that they can be rejoined upon allowability of any linking claims. Conclusion THIS ACTION IS MADE FINAL. 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 JUSTIN SEO whose telephone number is (571)270-1327. The examiner can normally be reached M-F 9am-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, Ricardo I Magallanes can be reached at 571-272-5960. 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. /JUSTIN SEO/Primary Examiner, Art Unit 2853 August 21, 2026
Read full office action

Prosecution Timeline

Jun 27, 2024
Application Filed
May 12, 2026
Non-Final Rejection mailed — §112
Aug 11, 2026
Response Filed
Aug 25, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

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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
82%
Grant Probability
99%
With Interview (+16.5%)
2y 5m (~2m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 662 resolved cases by this examiner. Grant probability derived from career allowance rate.

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