Prosecution Insights
Last updated: July 17, 2026
Application No. 18/749,978

ARC EXTINGUISHING SYSTEM FOR CONTACTOR AND CONTACTOR

Non-Final OA §102§103
Filed
Jun 21, 2024
Priority
Jul 19, 2023 — CN 202321911137.3
Examiner
BOLTON, WILLIAM A
Art Unit
Tech Center
Assignee
Schneider Electric SE
OA Round
1 (Non-Final)
89%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 89% — above average
89%
Career Allowance Rate
679 granted / 762 resolved
+29.1% vs TC avg
Moderate +6% lift
Without
With
+5.8%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 10m
Avg Prosecution
24 currently pending
Career history
783
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
84.8%
+44.8% vs TC avg
§102
11.2%
-28.8% vs TC avg
§112
1.7%
-38.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 762 resolved cases

Office Action

§102 §103
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 § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claims 1-4 and 7-8 are rejected under 35 U.S.C. 102 (a)(1) as being anticipated by Tian et al, US 11081296 [Tian]. Regarding claim 1, Tian discloses (figs.1-5) an arc extinguishing system for a contactor (100), used for extinguishing an arc generated upon a movable contact (3) and a stationary contact (2) of the contactor (100) being separated, where the arc extinguishing system comprises: an arc extinguishing chamber (4), accommodating a plurality of arc extinguishing grids (41), and an extension direction of each of the plurality of arc extinguishing grids (41) being perpendicular to an extension direction (31) of the movable contact (3); an arc striking piece (25), electrically connected to the stationary contact (2) and configured to extend toward the arc extinguishing chamber (4), so that the arc generated upon the movable contact (3) and the stationary contact (2) being separated moves along the arc striking piece (25) toward the arc extinguishing chamber (4). Regarding claim 2, Tian further discloses where the arc striking piece (25) comprises a connection part (252) configured to be electrically connected to the stationary contact (2) and a guide part (labeled in fig.3, below) spaced apart from the stationary contact (2) and guiding the arc. Regarding claim 3, Tian further discloses where the connection part (252) comprises a first part(labeled in fig.3, below), a second part (labeled in fig.3, below) and a bending part (2523) connecting the first part (labeled in fig.3, below) and the second part (labeled in fig.3, below) the first part (labeled in fig.3, below), the bending part (2523) and the second part (labeled in fig.3, below) form a substantially U-shape, the first part (labeled in fig.3, below) is electrically connected to the stationary contact (2), and the second part (labeled in fig.3, below) is connected to the guide part (labeled in fig.3, below) and the arc flows from the first part (labeled in fig.3, below) to the second part (labeled in fig.3, below) through the bending part (2523) PNG media_image1.png 446 506 media_image1.png Greyscale Regarding claim 4, Tian further discloses where the guide part (labeled in fig.3, above) comprises a tail part (labeled in fig.3, above) extending perpendicular to the stationary contact (2) and a transition part (labeled in fig.3, above) connecting the second part (labeled in fig.3, above) and the tail part (labeled in fig.3, above). Regarding claim 7, Tain further discloses where the guide part (labeled in fig.3, above) extends past the plurality of arc extinguishing grids (41) so that the guide part (labeled in fig.3, above) partially surrounds the plurality of arc extinguishing grids (41). Regarding claim 8, Tian further discloses a contactor, comprising the arc extinguishing system [col.1, lines 18-32]. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 5-6 are rejected under 35 U.S.C. 103 as being unpatentable over Tian in view of Tuerkman et al, DE 102007040170 [Tuerkmen]. Regarding claim 5, Tian fails to disclose wherein the guide part comprises a groove centrally arranged in the guide part. Tuerkmen discloses (figs.1-8) an arc extinguishing system (10) comprising a guide part (16) comprises a groove centrally arranged in the guide part (16). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the arc guide of Tian, with the inclusion of the arc guide of Tuerkmen, thereby providing a configuration that helps the generated arc to move in the center of the guide part, quickly toward the arc extinguishing chamber. Regarding claim 6, Tian fails to disclose wherein the tail part comprises a first inclined lateral edge and a second inclined lateral edge, so that the first inclined lateral edge and the second inclined lateral edge converge towards a middle of the tail part to form a tip. Tuerkmen discloses (figs.1-8) an arc extinguishing system (10) where a tail part comprises a first inclined lateral edge and a second inclined lateral edge, so that the first inclined lateral edge and the second inclined lateral edge converge towards a middle of the tail part to form a tip [see fig.2]. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the arc guide of Tian, with the teaching of the arc guide of Tuerkmen, thereby providing a configuration that helps the generated arc to converge to the tip of the guide part, so that the arc can enter the arc extinguishing chamber, easily. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Lauraire et al, Wang et al, Comtois, Puhalla et al, Theisen et al, Birner et al, Yamamoto and Masuda et al are examples of arc extinguishing systems configured similar to the present invention. Any inquiry concerning this communication or earlier communications from the examiner should be directed to WILLIAM A BOLTON whose telephone number is (571)270-5887. The examiner can normally be reached Mon-Fri: 7:30AM - 5:00PM. 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, Renee S Luebke can be reached at 571-272-2009. 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. /WILLIAM A BOLTON/Primary Examiner, Art Unit 2831
Read full office action

Prosecution Timeline

Jun 21, 2024
Application Filed
Jun 30, 2026
Non-Final Rejection mailed — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12683103
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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
89%
Grant Probability
95%
With Interview (+5.8%)
1y 10m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 762 resolved cases by this examiner. Grant probability derived from career allowance rate.

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