Patent US3103384A successfully refreshed from Google Patents.
US3103384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable and convertible wheel chair
Assignee: Individual
•
Filing: 1961-01-23
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Granted: 1963-09-10
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Expires: 1981-01-23
Abstract
No abstract record available.
Inventors
- 👤 Edwin L Zivi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:29
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/1056; A61G5/1059; Y; Y10; Y10S; Y10S297/00; Y10S297/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A CHAIR ASSEMBLY COMPRISING A SUPPORTING FRAME HAVING UPRIGHT RIGID SIDE TRACKS, A SEAT ASSEMBLY MOVABLY SUPPORTED ON SAID TRACKS FOR ELEVATIONAL MOVEMENT, MEANS INTERCONNECTING THE SEAT ASSEMBLY AND THE FRAME FOR MOVING THE SEAT ASSEMBLY ON SAID TRACKS, AND OPERATING MEANS MOUNTED ON THE VERTICALLY MOVABLE SEAT ASSEMBLY AND CONNECTED WITH THE INTERCONNECTING MEANS WHEREBY AN OCCUPANT OF THE SEAT ASSEMBLY MAY CHANGE THE ELEVATIONAL POSITION OF THE SEAT ASSEMBLY, SAID SEAT ASSEMBLY INCLUDING A GENERALLY L-SHAPED FRAME ASSEMBLY, A SEAT MEMBER MOUNTED ON SAID FRAME ASSEMBLY AND BEING SHAPED TO COMFORTABLY RECEIVE AN OCCUPANT, ARM RESTS CARRIED BY SAID FRAME ASSEMBLY, SAID OPERATING MEANS BEING DETACHABLY MOUNTED ON ONE OF SAID ARM REST ADJACENT THE OUTER END THEREOF FOR EASY ACCESS BY THE OCCUPANT OF THE SEAT ASSEMBLY.
Claim 2
Dependent Claim
130 words
A CHAIR ASSEMBLY COMPRISING A SUPPORTING FRAME HAVING UPRIGHT RIGID SIDE TRACKS, A SEAT ASSEMBLY MOVABLY SUPPORTED ON SAID TRACKS FOR ELEVATIONAL MOVEMENT, MEANS INTERCONNECTING THE SEAT ASSEMBLY AND THE FRAME FOR MOVING THE SEAT ASSEMBLY ON SAID TRACKS, AND OPERATING MEANS MOUNTED ON THE VERTICALLY MOVABLE SEAT ASSEMBLY AND CONNECTED WITH THE INTERCONNECTING MEANS WHEREBY AN OCCUPANT OF THE SEAT ASSEMBLY MAY CHANGE THE ELEVATIONAL POSITION OF THE SEAT ASSEMBLY, SAID SEAT ASSEMBLY INCLUDING A GENERALLY L-SHAPED FRAME ASSEMBLY, A SEAT MEMBER MOUNTED ON SAID FRAME ASSEMBLY AND BEING SHAPED TO COMFORTABLY RECEIVE AN OCCUPANT, ARM RESTS CARRIED BY SAID FRAME ASSEMBLY, SAID OPERATING MEANS BEING DETACHABLY MOUNTED ON ONE OF SAID ARM REST ADJACENT THE OUTER END THEREOF FOR EASY ACCESS BY THE OCCUPANT OF THE SEAT ASSEMBLY.
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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) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |