Prosecution Insights
Last updated: October 27, 2026
Application No. 19/192,690

POWER TOOL AND AIRFLOW DEVICE

Final Rejection §112
Filed
Apr 29, 2025
Priority
May 31, 2024 — CN 202410704975.6
Examiner
LOPEZ, MICHELLE
Art Unit
3731
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Nanjing Chervon Industry Co., Ltd.
OA Round
2 (Final)
82%
Grant Probability
Favorable
3-4
OA Rounds
1y 3m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
928 granted / 1134 resolved
+11.8% vs TC avg
Moderate +12% lift
Without
With
+11.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
33 currently pending
Career history
1170
Total Applications
across all art units

Statute-Specific Performance

§103
43.5%
+3.5% vs TC avg
§102
24.3%
-15.7% vs TC avg
§112
21.6%
-18.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1134 resolved cases

Office Action

§112
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 . This action is in response to the amendment filed on 08/12/26. Claims 1, 3-10 and 16-26 are pending and have been examined. 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, 3-10 and 16-26 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. In claims 1 and 21, the limitations of “the first material is ranked on one side of the working object and a second material is ranked on an opposite side of the working object” and “wherein a rank difference between the first material and the second material in the electrostatic sequence is greater than or equal to 2.” render the claim indefinite in that it is unclear whether the claimed “ranked difference” is synonymous with the disclosed “interval” described in the specification of the instant application. Also, it is unclear how the numerical rank difference is calculated. In claim 10, it is unclear what is encompassed by “location of a smallest electrostatic charge”. The claim identifies the measurement location according to an amount of electrostatic charge, while characterizing the claimed condition in terms of voltage at that location. It is not clear whether the smallest electrostatic charge refers to total charge, charge magnitude, electrostatic potential, or another parameter. In claims 16, 18-19 and 22, the phrase of “different electrostatic properties” renders the claim indefinite because the claim does not identify which electrostatic property must differ or the degree of difference necessary. In claim 17, the phrase “substantially the same as” is a term of degree. The claim does not provide any numerical boundary for determining the amount by which the respective lengths may differ while remaining “substantially the same”. In claim 23, the limitation of “capable of working normally” renders the claim indefinite in that it lacks objective boundary. It is unclear what operating condition constitutes “normally”. Allowable Subject Matter Claims 1, 3-10 and 16-26 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. Response to Arguments Applicant’s arguments, with respect to claims 1, 3 and 6-7 as anticipated by Yang have been fully considered and are persuasive. The rejection of claims 1, 3, 6-7 has been withdrawn. 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 MICHELLE LOPEZ whose telephone number is (571)272-4464. The examiner can normally be reached Monday thru Friday 8:30 am to 4:30 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, 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. /MICHELLE LOPEZ/ Primary Examiner, Art Unit 3731
Read full office action

Prosecution Timeline

Apr 29, 2025
Application Filed
May 21, 2026
Non-Final Rejection mailed — §112
Aug 12, 2026
Response Filed
Sep 22, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12758216
END TOOL AND SURGICAL INSTRUMENT
1y 8m to grant Granted Oct 13, 2026
Patent 12759125
POWERED FASTENER DRIVER
1y 4m to grant Granted Oct 13, 2026
Patent 12746645
IMPACT TOOL
1y 10m to grant Granted Sep 29, 2026
Patent 12734649
Electric Hand Tool with Torque Sensor and Certification System
3y 10m to grant Granted Sep 15, 2026
Patent 12734650
IMPACTING RATCHET TOOL WITH MULTIPLE OPERATING MODES
1y 10m to grant Granted Sep 15, 2026
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
94%
With Interview (+11.7%)
2y 9m (~1y 3m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1134 resolved cases by this examiner. Grant probability derived from career allowance rate.

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