Patent US3185495A successfully refreshed from Google Patents.
US3185495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel chair with reclining backrest and movable axle associated therewith
Assignee: Mobilaid Inc
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Filing: 1963-12-18
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Granted: 1965-05-25
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Expires: 1983-12-18
Abstract
No abstract record available.
Inventors
- 👤 William J Pivacek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:48
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/1056; A61G5/1067; A61G5/1054; A61G5/12; A61G5/125; A61G5/128; A61G5/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A WHEEL CHAIR COMPRISING A FRAME, A SEAT, A RECLINABLE BACKREST PIVOTALLY CONNECTED TO THE FRAME ADJACENT THE REARWARD END OF THE SEAT FOR SWINGING MOTION ABOUT A TRANSVERSE AXIS EXTENDING ACROSS THE BACK OF THE CHAIR, A PAIR OF WHEELS HAVING MOVABLE AXLES PARALLEL WITH SAID AXIS AND DISPOSED SUBJACENT SAID BACKREST, AND A PAIR OF STRUTS HAVING THEIR UPPER ENDS PROXIMATE SAID BACKREST AND HAVING THEIR LOWER ENDS PIVOTALLY CONNECTED TO SAID FRAME FOR SWINGING MOVEMENT ABOUT ALIGNED AXES BELOW AND PARALLEL WITH SAID TRANSVERSE AXIS, EACH OF SAID STRUTS CARRYING ONE OF SAID WHEEL AXLES BETWEEN SAID UPPER AND LOWER ENDS THEREOF, AND MEANS FOR SWINGING SAID STRUTS, BACKREST AND AXLES TOGETHER.
Claim 2
Dependent Claim
115 words
A WHEEL CHAIR COMPRISING A FRAME, A SEAT, A RECLINABLE BACKREST PIVOTALLY CONNECTED TO THE FRAME ADJACENT THE REARWARD END OF THE SEAT FOR SWINGING MOTION ABOUT A TRANSVERSE AXIS EXTENDING ACROSS THE BACK OF THE CHAIR, A PAIR OF WHEELS HAVING MOVABLE AXLES PARALLEL WITH SAID AXIS AND DISPOSED SUBJACENT SAID BACKREST, AND A PAIR OF STRUTS HAVING THEIR UPPER ENDS PROXIMATE SAID BACKREST AND HAVING THEIR LOWER ENDS PIVOTALLY CONNECTED TO SAID FRAME FOR SWINGING MOVEMENT ABOUT ALIGNED AXES BELOW AND PARALLEL WITH SAID TRANSVERSE AXIS, EACH OF SAID STRUTS CARRYING ONE OF SAID WHEEL AXLES BETWEEN SAID UPPER AND LOWER ENDS THEREOF, AND MEANS FOR SWINGING SAID STRUTS, BACKREST AND AXLES TOGETHER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |