Patent US4625743A successfully refreshed from Google Patents.
US4625743A
Expired / Lapsed
US
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Crutch
Assignee: Individual
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Filing: 1985-08-12
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Granted: 1986-12-02
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Expires: 2005-08-12
Abstract
Abstract A crutch of the bifurcated type having a handgrip which is angularly offset relative to the armrest to accommodate the natural positioning of the hand and wrist. One or both support struts carrying the handgrips may be bent outwardly to carry the handgrip at a selected angle or brackets attachable to a conventional crutch may be used for the same purpose.
Inventors
- 👤 Garth L. Harker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:00
CPC Classifications
A; A61; A61H; A61H3/00; A61H3/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
123 words
A crutch comprising: a ground engaging support shaft; a bifurcated main frame carried by said support shaft, said main frame including first and second vertically extending struts; an armrest carried by and affixed to the uppermost terminal end of said struts; the longitudinal axis of said first strut being in a plane with the longitudinal axis of said armrest and said second strut defining two end portions and a mid-portion, the longitudinal axis of said mid-portion being offset and parallel to the plane of said first strut and armrest; and a substantially horizontal handgrip, said handgrip affixed to said first strut and the mid-portion of said second strut at an angle relative to the plane defined by said first strut and said armrest.
Claim 2
Dependent Claim
123 words
A crutch comprising: a ground engaging support shaft; a bifurcated main frame carried by said support shaft, said main frame including first and second vertically extending struts; an armrest carried by and affixed to the uppermost terminal end of said struts; the longitudinal axis of said first strut being in a plane with the longitudinal axis of said armrest and said second strut defining two end portions and a mid-portion, the longitudinal axis of said mid-portion being offset and parallel to the plane of said first strut and armrest; and a substantially horizontal handgrip, said handgrip affixed to said first strut and the mid-portion of said second strut at an angle relative to the plane defined by said first strut and said armrest.
Claim 3
Dependent Claim
33 words
The apparatus as described in claim 1 wherein said first strut and said second strut are provided with a plurality of vertically spaced apertures for affixing said handgrip thereto at a selected height.
References Cited (Backward Citations)
US1277009A
Cited
GB119750A
Cited
US1383156A
Cited
US2778370A
Cited
US2856943A
Cited
US3269399A
Cited
GB1104255A
Cited
US4027687A
Cited
US4385697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-01 | 1990-06-02 | 1990-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-01 | 1994-06-02 | 1994-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-01 | 1998-06-02 | 1998-12-02 | $7700.00 | Window Closed / Lapsed |