Prosecution Insights
Last updated: October 21, 2026
Application No. 19/489,659

Fan Impeller Mid-Segment, Cross-Flow Fan Impeller and Air Conditioner

Non-Final OA §102
Filed
Dec 03, 2025
Priority
Aug 18, 2023 — CN 202311052482.0 +1 more
Examiner
CHRISTENSEN, DANIELLE M
Art Unit
3745
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Gree Electric Appliances Inc. Of Zhuhai
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
1y 10m
Est. Remaining
91%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allowance Rate
510 granted / 642 resolved
+9.4% vs TC avg
Moderate +11% lift
Without
With
+11.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
10 currently pending
Career history
669
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
48.0%
+8.0% vs TC avg
§102
22.9%
-17.1% vs TC avg
§112
26.7%
-13.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 642 resolved cases

Office Action

§102
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. Claim(s) 1 and 14-15 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Xu et al. (CN 201354759 Y; hereinafter Xu). Regarding claim 1, Xu (Fig.1-5 ) discloses a fan impeller mid-segment, comprising a disc (1) having a first side and a second side opposite to each other, wherein the first side is provided with a blade (2), and the second side is provided with a welding groove (3) configured to be welded with the blade (2) on another fan impeller mid-segment, and the number of the welding grooves (3) is two or more than two, and the welding grooves (3) are sequentially arranged at intervals along a circumferential direction of the disc (1); wherein the second side is also provided with a silencing groove (6) located between two adjacent welding grooves (3). Regarding claim 14, Xu (Fig. 1-5) discloses a cross-flow fan impeller, comprising the fan impeller mid-segment according to claim 1. Refer to claim 1. Regarding claim 15, Xu discloses the cross-flow fan impeller of claim 14. Refer to claim 1. Allowable Subject Matter Claims 2-13 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Pertinent Prior Art The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Nagamori et al. (US 5,611,667) discloses a transverse fan. Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to DANIELLE M CHRISTENSEN whose telephone number is (571)270-3275. The examiner can normally be reached M-F 9-5 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, Courtney Heinle can be reached at 571-270-3508. 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. /Danielle M. Christensen/Examiner, Art Unit 3745
Read full office action

Prosecution Timeline

Dec 03, 2025
Application Filed
Oct 02, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

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7y 7m to grant Granted Jun 23, 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
79%
Grant Probability
91%
With Interview (+11.3%)
2y 9m (~1y 10m remaining)
Median Time to Grant
Low
PTA Risk
Based on 642 resolved cases by this examiner. Grant probability derived from career allowance rate.

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