Prosecution Insights
Last updated: October 04, 2026
Application No. 19/024,256

A Photoelectric Microswitch

Non-Final OA §112
Filed
Jan 16, 2025
Examiner
WILLIAMS, DON J
Art Unit
2878
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Dongguan City Kaihua Electronics Co. Ltd.
OA Round
1 (Non-Final)
84%
Grant Probability
Favorable
1-2
OA Rounds
1y 0m
Est. Remaining
89%
With Interview

Examiner Intelligence

Grants 84% — above average
84%
Career Allowance Rate
757 granted / 902 resolved
+15.9% vs TC avg
Moderate +5% lift
Without
With
+5.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
11 currently pending
Career history
911
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
56.7%
+16.7% vs TC avg
§102
33.2%
-6.8% vs TC avg
§112
5.0%
-35.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 902 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 . Claim Rejections - 35 USC § 112 2. Claims 1-17 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. 3. In claim 1, lines 7, the phrase, “base. The” should be replaced with --base, the-- to be consistent with correct claim language structuring and clarity. 4. In claim 1, lines 10, the phrase, “connected into a whole” should be replaced with --connected into a hole-- to be consistent with correct language structuring and clarity. 5. In claim 2, lines 4-5, the phrase, “the light shield” is confusing and appears to lack antecedent basis. Should the phrase, “the light shield” be replaced with the phrase, --the light-blocking sheet-- for claim language consistency and clarity? Claim 2 depends from claim 1 and claim 1 sets forth --a light blocking sheet--. 6. In claim 5, lines 3, the phrase, “the light-blocking plate” is confusing and appears to lack antecedent basis. Should the phrase, “the light-blocking plate” be replaced with the phrase, --the light-blocking sheet-- for claim language consistency and clarity? 7. In claim 8, lines 2, the phrase, “the inner limit projection” is confusing and appears to lack antecedent basis. Should the phrase, “the inner limit projection” be replaced with the phrase, --the inner limit protrusion-- for claim language consistency and clarity? Claim 8 depends from claim 7 and claim 7 sets forth --an inner limit protrusion--. 8. In claim 8, lines 3, the phrase, “the inner limit clamping groove” is confusing and appears to lack antecedent basis. Should “the inner limit clamping groove” be replaced with “an inner limit clamping groove” for correct claim language structuring and clarity? No prior mentioning of “an inner limit clamping groove” claimed. 9. In claim 12, lines 2, the phrase, “a limit notch” the same as “a limit gap” as disclose in paragraph [0021] of the specification. The language of the specification and the claims should be consistent. 10. In claim 16, lines 3, the phrase, “the light blocking piece” is confusing and appears to lack antecedent basis. Should the phrase, “the light blocking piece” be replaced with the phrase --the light blocking sheet-- for claim language consistency and clarity. Claim 16 depends from claim 1 and claim 1 sets forth --a light blocking sheet--. 11. In claim 17, lines 4-5, the phrase, “The elastic sheet” is confusing and appears to lack antecedent basis. Should the phrase, “The elastic sheet” be replaced with the phrase --the elastic piece” for claim language consistency and clarity. Claim 17 depends from claim 16 and claim 16 sets forth “the elastic piece”. To avoid claim language ambiguity, please set forth the correct claim language and/or claim language structuring for consistency and clarity. Appropriate correction is required. 12. Claims 3-4, 6-7, 9-11, 13-15 are rejected due to their dependency. Conclusion 13. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DON J WILLIAMS whose telephone number is (571)272-8538. The examiner can normally be reached M-F 8 a.m.-5 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, Georgia Epps can be reached at 571-272-2328. 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. /DON J WILLIAMS/Examiner, Art Unit 2878
Read full office action

Prosecution Timeline

Jan 16, 2025
Application Filed
Aug 12, 2026
Non-Final Rejection mailed — §112 (current)

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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
84%
Grant Probability
89%
With Interview (+5.1%)
2y 8m (~1y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 902 resolved cases by this examiner. Grant probability derived from career allowance rate.

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