Prosecution Insights
Last updated: May 29, 2026
Application No. 18/888,336

Spring Clutch For Power Torque Wrench

Final Rejection §112
Filed
Sep 18, 2024
Priority
Sep 22, 2023 — provisional 63/539,848
Examiner
SONG, HIMCHAN
Art Unit
3731
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
K2M Inc.
OA Round
2 (Final)
86%
Grant Probability
Favorable
3-4
OA Rounds
8m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allowance Rate
216 granted / 252 resolved
+15.7% vs TC avg
Moderate +13% lift
Without
With
+13.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
12 currently pending
Career history
262
Total Applications
across all art units

Statute-Specific Performance

§103
64.2%
+24.2% vs TC avg
§102
12.8%
-27.2% vs TC avg
§112
22.4%
-17.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 252 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 Amendment The amendment filed 15 April 2026 has been entered. Claims 1-23 have been entered. 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(s) 1-17 is/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 pre-AIA the inventor(s), at the time the application was filed, had possession of the claimed invention. Regarding claim 1, limitation “wherein the flexible region of the one-piece clutch is less rigid than the drive shaft and the torque shaft” presents new matter, since the subject application as originally filed fails to disclose limitation. Specifically, Remarks filed 15 April 2026 fails to point to a section in written descriptions as originally filed disclosing the above limitation, and Examiner could not find such limitation within Specifications or Drawings. All dependent claims of above-mentioned claims inherit all of the limitations of the above-mentioned claims, thus are likewise rejected under 35 U.S.C. 112(a) as failing to comply with the written description requirement. Examiner Remarks Claim(s) 1-17 is/are currently free of art in view of the 112 rejection(s) above. Applicant is kindly reminded that upon amendment which renders a significant change in scope, prior art may be provided in a subsequent action. Allowable Subject Matter Claim(s) 23 is/are allowed. See previous Office Action mailed 16 January 2026 for a statement of reasons for the indication of allowable subject matter. The combination of the claimed limitations are novel and found to be allowable over the prior art. The cited references taken singly or in combination do not anticipate or make obvious the Applicant's claimed invention. Response to Arguments Applicant’s argument have been fully considered but they are not persuasive. Applicant’s arguments with respect to claim(s) 1 have been considered but are moot because the arguments do not apply to the 35 U.S.C. 112(a) rejection as analyzed above. If Applicant wishes to further clarify the arguments and/or limitations, Examiner encourages Applicant to schedule a telephonic interview. 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 extension fee 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 date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Himchan Song whose telephone number is (571)272-4142. The examiner can normally be reached M-Th 9:00 a.m. - 4:30 p.m. 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, Anna Kinsaul can be reached at (571) 270-1926. 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. /HIMCHAN SONG/Examiner, Art Unit 3731
Read full office action

Prosecution Timeline

Sep 18, 2024
Application Filed
Dec 13, 2025
Non-Final Rejection (signed) — §112
Jan 16, 2026
Non-Final Rejection mailed — §112
Apr 15, 2026
Response Filed
Apr 30, 2026
Final Rejection mailed — §112
May 26, 2026
Interview Requested

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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
86%
Grant Probability
99%
With Interview (+13.1%)
2y 4m (~8m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 252 resolved cases by this examiner. Grant probability derived from career allowance rate.

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