US3215469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Invalid chair
Assignee: Individual
•
Filing: 1962-03-05
•
Granted: 1965-11-02
•
Expires: 1982-03-05
Abstract
No abstract record available.
Inventors
- 👤 Floyd B Wamsley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:09
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/02; A47C1/031; A47C1/034; A47C1/035; A61; A61G; A61G5/00; A61G5/10; A61G5/1002; A61G5/12; A61G5/125; A61G5/128; A61G5/006; A61G5/1056; A61G5/1059; Y; Y10; Y10S; Y10S297/00; Y10S297/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A WHEEL CHAIR COMPRISING A SEAT, A BACK REST, A LEG REST, AND A SUPPORT FRAME, AND MEANS FOR PIVOTALLY CONNECTING THE BACK REST AND LEG REST TO THE SEAT, SAID PIVOT CONNECTIONS INCLUDING A CRANK OPERABLE GEARING INCLUDING A ONE WAY CLUTCH MECHANISM.
Claim 2
Dependent Claim
44 words
A WHEEL CHAIR COMPRISING A SEAT, A BACK REST, A LEG REST, AND A SUPPORT FRAME, AND MEANS FOR PIVOTALLY CONNECTING THE BACK REST AND LEG REST TO THE SEAT, SAID PIVOT CONNECTIONS INCLUDING A CRANK OPERABLE GEARING INCLUDING A ONE WAY CLUTCH MECHANISM.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
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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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |