Prosecution Insights
Last updated: April 19, 2026
Application No. 19/058,537

FIXING DEVICE

Non-Final OA §112
Filed
Feb 20, 2025
Examiner
CHEN, SOPHIA S
Art Unit
2852
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Brother Kogyo Kabushiki Kaisha
OA Round
1 (Non-Final)
96%
Grant Probability
Favorable
1-2
OA Rounds
1y 8m
To Grant
99%
With Interview

Examiner Intelligence

Grants 96% — above average
96%
Career Allow Rate
1481 granted / 1547 resolved
+27.7% vs TC avg
Minimal +4% lift
Without
With
+4.5%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 8m
Avg Prosecution
18 currently pending
Career history
1565
Total Applications
across all art units

Statute-Specific Performance

§101
1.2%
-38.8% vs TC avg
§103
35.2%
-4.8% vs TC avg
§102
33.5%
-6.5% vs TC avg
§112
20.5%
-19.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1547 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 . The drawings are objected to as failing to comply with 37 CFR 1.84(p)(5) because they include the following reference character(s) not mentioned in the description: 14e (Fig. 6). Corrected drawing sheets in compliance with 37 CFR 1.121(d), or amendment to the specification to add the reference character(s) in the description in compliance with 37 CFR 1.121(b) 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. Specification The disclosure is objected to because of the following informality: page 8, paragraph [0080], line 1, “the arm 6” should be written as “the arm 5”. Appropriate correction is required. The lengthy specification has not been checked to the extent necessary to determine the presence of all possible minor errors. Applicant’s cooperation is requested in correcting any errors of which applicant may become aware in the specification. 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. Claim 12 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 12 is considered to be indefinite because it discloses a fifth cable without disclosing a fourth cable. It is unclear what and where the fourth cable is. Allowable Subject Matter Claims 1-19 are allowed. Claim 20 would be allowable if rewritten to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action and to include all of the limitations of the base claim and any intervening claims. The following is an examiner’s statement of reasons for allowance: Independent claim 1 is allowable over the prior art of record because the prior art of record does not teach or suggest the combination of: an intermediate circuit board configured to relay a signal from the first temperature sensor to the external connector and to relay a signal from the second temperature sensor to the external connector; a first cable configured to connect the first temperature sensor and the intermediate circuit board; a second cable configured to connect the second temperature sensor and the intermediate circuit board; and a third cable configured to connect the intermediate circuit board and the external connect. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Citation of Pertinent Prior Art The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Ishida et al. (US Pat. Pub. No. US 2012/0251207 A1) discloses a fixing device installable into a main housing of an image forming apparatus, comprising: a heating member comprising a heater; a pressure member configured to nip a sheet in combination with the heating member; a first side frame; a second side frame; a connection frame; a first temperature sensor; a second temperature sensor; a first cable configured to connect the first temperature sensor; and a second cable configured to connect the second temperature sensor. Takemoto (US Pat. Pub. No. US 2016/0378055 A1) discloses a fixing device installable into a main housing of an image forming apparatus, comprising: a heating member comprising a heater; a pressure member configured to nip a sheet in combination with the heating member; a first side frame; a second side frame; a connection frame; and an external connector. Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to SOPHIA S CHEN whose telephone number is (571)272-2133. The examiner can normally be reached M-F 8 am - 5 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, Stephanie Bloss can be reached at 571-272-3555. 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. /SOPHIA S CHEN/Primary Examiner, Art Unit 2852 Ssc February 12, 2026
Read full office action

Prosecution Timeline

Feb 20, 2025
Application Filed
Feb 12, 2026
Non-Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12602004
IMAGE FORMING APPARATUS
2y 5m to grant Granted Apr 14, 2026
Patent 12591199
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
2y 5m to grant Granted Mar 31, 2026
Patent 12591198
IMAGE FORMING APPARATUS HAVING TONER REPLENISHMENT
2y 5m to grant Granted Mar 31, 2026
Patent 12572109
IMAGE FORMING APPARATUS HAVING MOVABLE JOINT CAM WITH OPENINGS
2y 5m to grant Granted Mar 10, 2026
Patent 12572110
DEVELOPING CARTRIDGE INCLUDING CASING, AND FIRST LEVER PIVOTALLY MOVABLE ABOUT SHAFT THEREOF RELATIVE TO CASING
2y 5m to grant Granted Mar 10, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
96%
Grant Probability
99%
With Interview (+4.5%)
1y 8m
Median Time to Grant
Low
PTA Risk
Based on 1547 resolved cases by this examiner. Grant probability derived from career allow rate.

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