US2653649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel chair with detachable armrest
Assignee: Individual
•
Filing: 1950-02-11
•
Granted: 1953-09-29
•
Expires: 1970-02-11
Abstract
No abstract record available.
Inventors
- 👤 William A Linquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:06
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/12; A61G5/1054; A61G5/125; A61G5/128; A61G5/1056; A61G5/1075; Y; Y10; Y10S; Y10S297/00; Y10S297/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US597665A
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US2356077A
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US1420924A
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US1995739A
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US2236983A
Cited
US2203320A
Cited
US2269918A
Cited
US2382953A
Cited
US2520309A
Cited
US2503733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |