Prosecution Insights
Last updated: April 19, 2026
Application No. 17/921,327

Lifting/Lowering Underframe and Load-bearing Device Having Same

Non-Final OA §102§112
Filed
Oct 25, 2022
Examiner
WILSON, LEE D
Art Unit
3723
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Dongpin Salon & Beauty Equipment Co. Ltd.
OA Round
1 (Non-Final)
80%
Grant Probability
Favorable
1-2
OA Rounds
2y 11m
To Grant
98%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allow Rate
1458 granted / 1824 resolved
+9.9% vs TC avg
Strong +19% interview lift
Without
With
+18.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
34 currently pending
Career history
1858
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
25.7%
-14.3% vs TC avg
§102
48.9%
+8.9% vs TC avg
§112
19.9%
-20.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1824 resolved cases

Office Action

§102 §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 Claims 21 and 43-53 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. The following claims are vague, indefinite, awkwardly, confusingly worded and/or lacking proper antecedent basis: These claims 21 and 43-53 recite “any of claim “ . The phrase any of the claim is confusing since the claim would be referred to in part. The claim is dependent on all of the claim. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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, 9 and 21 is/are rejected under 35 U.S.C. 102(a1) as being anticipated by Bendixen 2022/0397232 A1. Bendixen discloses the claimed invention as recited in the claims as shown below: Claim 1 (original): A lifting/lowering underframe, comprising: a lifting/lowering mechanism, which comprises a first lifting/lowering frame 3, a second lifting/lowering frame 2 and a driving member 11, wherein two ends of said driving member are respectively connected with said first lifting/lowering frame and said second lifting/lowering frame, wherein said driving member is an electric push rod 15, wherein said driving member held between said first lifting/lowering frame and said second lifting/lowering frame allows the relative movement of said first lifting/lowering frame and said second lifting/lowering frame to be driven electrically. Claim 9 (original): A lifting/lowering underframe, comprising: a lifting/lowering mechanism, which comprises a rotating member 32 and wheels, a maintaining member 5 and at least one driving member 11, wherein two ends of said driving member are respectively connected with said rotating member and said maintaining member, so that said driving member is capable of driving said rotating member and said maintaining member to move relative to each other; and an affixed base 32, wherein said lifting/lowering mechanism is rotatably mounted on said affixed base, and allows said lifting/lowering underframe to be capable of switching between a rotatable state and a locking state . Wheels can be locked into place Claim 21 (currently amended): The lifting/lowering underframe, as recited in any of claims 9-28, wherein said driving member is implemented as an electric push rod 15. Allowable Subject Matter Claims 2-8, 10-20, 22-42, and 54-64 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. Claims 21 and 43-53 are rejected under 112 rejection but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. The 892 form discloses prior art being made record. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LEE D WILSON whose telephone number is (571)272-4499. The examiner can normally be reached M-TH 6;30-4;30. 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, BRIAN KELLER can be reached at 571-272-8548. 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. LEE D. WILSON Examiner Art Unit 3723 Ldw /LEE D WILSON/Primary Examiner, Art Unit 3723 September 23, 2025
Read full office action

Prosecution Timeline

Oct 25, 2022
Application Filed
Sep 23, 2025
Non-Final Rejection — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599789
RESCUE ACCESS WEDGE
2y 5m to grant Granted Apr 14, 2026
Patent 12595849
SEAL RING INSTALLATION MODULE AND SEAL RING INSTALLATION SYSTEM
2y 5m to grant Granted Apr 07, 2026
Patent 12589976
LIFTING SYSTEM
2y 5m to grant Granted Mar 31, 2026
Patent 12583068
Clamping Arrangement
2y 5m to grant Granted Mar 24, 2026
Patent 12564923
MOUNTING TOOL FOR POSITIONING A SHAFT SEALING RING ON A SHAFT AND METHOD FOR PRODUCING A SHAFT SEAL
2y 5m to grant Granted Mar 03, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
80%
Grant Probability
98%
With Interview (+18.6%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 1824 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month