Prosecution Insights
Last updated: April 19, 2026
Application No. 18/371,041

WHEELCHAIR WHEEL LOCK SYSTEM

Non-Final OA §103§112
Filed
Sep 21, 2023
Examiner
TORRES WILLIAMS, MELANIE
Art Unit
3616
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Push Lox LLC
OA Round
1 (Non-Final)
85%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
97%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allow Rate
628 granted / 742 resolved
+32.6% vs TC avg
Moderate +12% lift
Without
With
+12.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
44 currently pending
Career history
786
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
37.5%
-2.5% vs TC avg
§102
46.1%
+6.1% vs TC avg
§112
15.1%
-24.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 742 resolved cases

Office Action

§103 §112
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Specification The specification is objected to as failing to provide proper antecedent basis for the claimed subject matter. See 37 CFR 1.75(d)(1) and MPEP § 608.01(o). Correction of the following is required: In claim 21, the terms “attachment member”, “securement member” and “gap” lack antecedent basis in the specification. 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 21-25 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. Claim 21 recites the limitation “a wheel lock system”. It is unclear what is defined as the “wheel lock system”. The “wheel lock system” is broadly indicated as element 10 in the specification. Claims 1-20 also appears to indicate that the “wheel lock system” is a broad recitation of all the elements of the invention. Claims 21-25 appear to indicate that the limitation is a more specific element(s) but the limitation(s) is unclear. Claim Rejections - 35 USC § 103 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 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 1, 3, 8, 9, and 12-14 are rejected under 35 U.S.C. 103 as being unpatentable over West (US 2988175) in view of Easley et al. (US 6854754). Re claim 1, West teaches a wheel lock system a first wheel and a first wheel lock plate (25) associated with said first wheel, said wheel lock plate having a first locking face, a first frame portion (11) proximate said first wheel lock plate and a second frame portion (12) separated from said first frame portion, said system comprising: a. a first control cable (37), said control cable having a first end and a second end opposite said first end; b. a first lock-pin (43), said first lock-pin being positioned proximate said first wheel lock plate and oriented toward said first wheel lock plate first locking face, said first lock-pin being selectively movable between a first position in which said first lock-pin engages said first wheel lock plate first locking face and a second position in which said first lock-pin does not engage said first wheel lock plate first locking face, said first lock-pin being operatively associated with said first end of said first control cable, said first control cable urging said first lock-pin between said first and second positions; c. a remote actuator , said actuator positioned proximate said second frame portion, said actuator comprising a grip (31), said grip being operatively associated with said second end of said first control cable, said grip moving between a first position in which said grip urges said first control cable to urge said first lock-pin into said first lock-pin first position and a second position in which said grip urges said first control cable to urge said first lock-pin into said first lock-pin second position; and d. a first biasing member (32), said first biasing member being positioned proximate said first control cable at a location apart from said first lock-pin, said first biasing member urging said first control cable to urge said first lock-pin toward said first lock-pin second position. (Fig. 1-4) West does not teach wherein the wheel lock system comprises a wheelchair. Easley et al. teach a wheel lock system comprising a wheelchair (100). (Fig. 5) It would have been obvious to one of ordinary skill in the art before the effective filing date to provide the wheel lock system of West in a wheelchair to simplify Re claim 3, West as modified teaches wherein said first biasing member (32) is positioned proximate said remote actuator (31). Re claim 8, West as modified teaches wherein said grip (31) is releasably lockable in one of said grip first position and said grip second position. Re claim 9, West as modified teaches wherein said first biasing member (32) urges said grip (31) into said one of said grip first position and said grip second position. Re claim 12, West as modified teaches wherein a remote actuator (106 – Easley et al.) attaches to a wheelchair proximate a wheelchair armrest (18, 20 – Easley et al.). Re claim 13, West as modified teaches wherein said first wheel lock plate first locking face (25) comprises one of a hole, a groove, a depression and a detent (29), said one of a hole, a groove, a depression and a detent being shaped and sized to receive at least a portion of said first lock-pin (43) when said first lock-pin is in said first lock-pin first position, said first lock-pin being positioned and oriented relative to said first wheel lock plate for at least a portion of said first lock-pin to engage said one of a hole, a groove, a depression and a detent when said first lock-pin is in said first lock-pin first position. Re claim 14, West wheel lock system comprising a first wheel and a first wheel lock plate (25) associated with said first wheel, said wheel lock plate having a locking plate with a plurality of locking openings (29), a first frame portion (11) proximate said first wheel lock plate and a second frame portion (12) separated from said first frame portion, said system comprising: a. a first control cable (37), said control cable having a first end and a second end opposite said first end; b. a first lock-pin (43), said first lock-pin being positioned proximate said first wheel lock plate and oriented toward said first wheel lock plate fist locking face, said first lock-pin being selectively movable between a first position in which said first lock-pin engages one of said plurality of locking openings and a second position in which said first lock-pin does not engage any of said locking openings, said first lock-pin being operatively associated with said first end of said first control cable, said first control cable urging said first lock- pin between said first and second positions; c. a remote actuator (31), said actuator positioned proximate said second frame portion, said actuator comprising a grip, said grip being operatively associated with said second end of said first control cable, said grip moving between a first position in which said grip urges said first control cable to urge said first lock-pin into said first lock-pin first position and a second position in which said grip urges said first control cable to urge said first lock-pin into said first lock- pin second position; and d. a first biasing member (32), said first biasing member being positioned proximate said first control cable at a location separate from said first lock-pin, said first biasing member urging said first control cable to urge said first lock-pin toward said first lock-pin second position. (Fig. 1-4) West does not teach wherein the wheel lock system comprises a wheelchair. Easley et al. teach a wheel lock system comprising a wheelchair (100). (Fig. 5) It would have been obvious to one of ordinary skill in the art before the effective filing date to provide the wheel lock system of West in a wheelchair to simplify Allowable Subject Matter Claims 2, 4-7, 10, 11, 15-20 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. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Landry et al., Roberts et al., Roberts, Norton et al., Ebersole, Deutsch et al., Murphy teach similar wheel lock systems. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MELANIE TORRES WILLIAMS whose telephone number is (571)272-7127. The examiner can normally be reached Tuesday - Friday 7:00AM-3:00PM. 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, Robert Siconolfi can be reached at 571-272-7124. 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. /MELANIE TORRES WILLIAMS/ Primary Examiner Art Unit 3616
Read full office action

Prosecution Timeline

Sep 21, 2023
Application Filed
Feb 27, 2026
Non-Final Rejection — §103, §112 (current)

Precedent Cases

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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
85%
Grant Probability
97%
With Interview (+12.3%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 742 resolved cases by this examiner. Grant probability derived from career allow rate.

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