Patent US3157189A successfully refreshed from Google Patents.
US3157189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power actuated crutch
Assignee: FAR PRIT ASSOCIATE Inc
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Filing: 1963-07-10
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Granted: 1964-11-17
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Expires: 1983-07-10
Abstract
No abstract record available.
Inventors
- 👤 George R Farnham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:04
CPC Classifications
A; A61; A61H; A61H3/00; A61H3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A VARIABLE LENGTH CRUTCH FOR HANDICAPPED PERSONS COMPRISING AN ELONGATED BODY ASSEMBLY HAVING A PAIR OF TUBULAR LOAD-BEARING TELESCOPING SECTIONS, AN ARMPIT REST DISPOSED ABOVE SAID TELESCOPING SECTIONS AND SUPPORTED THEREBY, HAND HOLD MEANS ATTACHED TO ONE OF SAID TELESCOPING SECTIONS AND LOCATED BELOW SAID ARMPIT REST, INTERNAL SCREW JACK MEANS CONNECTED BETWEEN SAID TELESCOPING SECTIONS FOR VARYING THE LENGTH OF SAID BODY ASSEMBLY BY CAUSING SAID SECTIONS TO TELESCOPE RELATIVE TO
Claim 2
Dependent Claim
72 words
A VARIABLE LENGTH CRUTCH FOR HANDICAPPED PERSONS COMPRISING AN ELONGATED BODY ASSEMBLY HAVING A PAIR OF TUBULAR LOAD-BEARING TELESCOPING SECTIONS, AN ARMPIT REST DISPOSED ABOVE SAID TELESCOPING SECTIONS AND SUPPORTED THEREBY, HAND HOLD MEANS ATTACHED TO ONE OF SAID TELESCOPING SECTIONS AND LOCATED BELOW SAID ARMPIT REST, INTERNAL SCREW JACK MEANS CONNECTED BETWEEN SAID TELESCOPING SECTIONS FOR VARYING THE LENGTH OF SAID BODY ASSEMBLY BY CAUSING SAID SECTIONS TO TELESCOPE RELATIVE TO
References Cited (Backward Citations)
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US2670748A
Cited
US2869623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |