Prosecution Insights
Last updated: April 19, 2026
Application No. 18/650,452

MOBILITY AIDS AND HEIGHT ADJUSTMENT MECHANISMS THEREOF

Non-Final OA §102
Filed
Apr 30, 2024
Examiner
HAWK, NOAH CHANDLER
Art Unit
3636
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Medical Depot Inc.
OA Round
1 (Non-Final)
62%
Grant Probability
Moderate
1-2
OA Rounds
2y 0m
To Grant
84%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allow Rate
950 granted / 1545 resolved
+9.5% vs TC avg
Strong +22% interview lift
Without
With
+22.0%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 0m
Avg Prosecution
62 currently pending
Career history
1607
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
41.2%
+1.2% vs TC avg
§102
34.7%
-5.3% vs TC avg
§112
22.1%
-17.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1545 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 . Drawings The drawings are objected to because the figures are too dark or of too poor quality to discern the claimed details there. Claims 2A-5B are deficient. Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. The figure or figure number of an amended drawing should not be labeled as “amended.” If a drawing figure is to be canceled, the appropriate figure must be removed from the replacement sheet, and where necessary, the remaining figures must be renumbered and appropriate changes made to the brief description of the several views of the drawings for consistency. Additional replacement sheets may be necessary to show the renumbering of the remaining figures. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1-10 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by EP 2343035 (Lauritsen). Regarding Claim 1, Lauritsen teaches a mobility aid, comprising: a left-side frame (A, see below); a right-side frame (B) coupled to the left-side frame; a plurality of wheels (C) supporting the left-side and right-side frames; a first shaft (12) defining a plurality of axially-spaced locking apertures (5), the first shaft being configured to slide relative to the left-side frame to adjust a position of an end of the first shaft relative to the left-side frame; a second shaft (D) defining a plurality of axially-spaced locking apertures (5), the second shaft being configured to slide relative to the right-side frame to adjust a position of an end of the second shaft relative to the right-side frame; and a first adjustment mechanism (see Figs 2a and 2b) including: an actuator (8) movably coupled to the left-side frame; a locking pin (4) movably coupled to the left-side frame and configured for receipt in a first locking aperture of the plurality of locking apertures of the first shaft in response to an actuation of the actuator; and a friction member (7’) movably coupled to the left-side frame and configured to press against the first shaft in response to the actuation of the actuator to resist shaking of the first shaft relative to the left-side frame. PNG media_image1.png 591 590 media_image1.png Greyscale Regarding Claim 2, Lauritsen teaches that the actuation of the actuator drives the locking pin into the first locking aperture when the locking pin is in horizontal registration with the first locking aperture, and drives the friction member into pressing engagement with the first shaft (see Figs. 2a-2b). Regarding Claim 3, Lauritsen teaches that the adjustment mechanism further includes a biasing member (15) operably engaged with the locking pin such that the biasing member biases the locking pin to a position in which the locking pin is external of the plurality of locking apertures. Regarding Claim 4, Lauritsen teaches that the actuator is a lever (8), the lever including a cam (the inner end contacting the top of 6) configured to engage at least one of the locking pin or the friction member. Regarding Claim 5, Lauritsen teaches that the cam of the lever is configured to drive axial movement of the locking pin (toward the shaft) and the friction member (upward) in response to a rotation of the lever. Regarding Claim 6, Lauritsen teaches a first handle (3) supported at a top end of the first shaft, wherein a vertical position of the first handle relative to the left-side frame is adjustable by sliding the first shaft relative to the left-side frame; and a second handle (E) supported at a top end of the second shaft, wherein a vertical position of the second handle relative to the right-side frame is adjustable by sliding the second shaft relative to the right-side frame. Regarding Claim 7, Lauritsen teaches that the left-side frame includes a left upright support (F), the first shaft being slidably received in the left upright support. Regarding Claim 8, Lauritsen teaches an adjustment mechanism for adjusting a position of a handle (3) or an armrest of a mobility aid, the adjustment mechanism comprising: a sleeve (G) defining a passageway therethrough (see Figs. 2a-2b); an actuator (8) movably coupled to the sleeve; a locking pin (4) movably supported in the sleeve and configured to move relative to the sleeve in response to an actuation of the actuator; and a friction member (7’) movably supported in the sleeve and configured to move relative to the sleeve in response to the actuation of the actuator. Regarding Claim 9, Lauritsen teaches a biasing member (15) engaged with the locking pin, the biasing member being configured to resiliently bias the locking pin toward the actuator. Regarding Claim 10, Lauritsen teaches that the actuator includes a cam (the inner end of 8) engaged with a head of the locking pin and configured to drive axial movement of the locking pin and the friction member in response to a rotation of the actuator relative to the sleeve. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Nakatani, Huang, Van Houtem et al., Wu, Pan et al., Fathi, Lin, and WO 2024/258288 teach adjustment means for rollators. Any inquiry concerning this communication or earlier communications from the examiner should be directed to NOAH C. HAWK whose telephone number is (571)272-1480. The examiner can normally be reached M-F 9am to 5:30pm. 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, David Dunn can be reached at 5712726670. 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. NOAH C. HAWK Primary Examiner Art Unit 3636 /Noah Chandler Hawk/Primary Examiner, Art Unit 3636
Read full office action

Prosecution Timeline

Apr 30, 2024
Application Filed
Jan 28, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599206
Umbrella Pole Brace Assembly
2y 5m to grant Granted Apr 14, 2026
Patent 12599207
A Sliding Seat Assembly for an Umbrella
2y 5m to grant Granted Apr 14, 2026
Patent 12582571
MOBILITY SYSTEMS AND METHODS
2y 5m to grant Granted Mar 24, 2026
Patent 12575998
CRUTCH WITH A CONTOURED GRIP AND A FOREARM SUPPORT
2y 5m to grant Granted Mar 17, 2026
Patent 12575651
Umbrella
2y 5m to grant Granted Mar 17, 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
62%
Grant Probability
84%
With Interview (+22.0%)
2y 0m
Median Time to Grant
Low
PTA Risk
Based on 1545 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