US2874756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Invalid's wheelchair
Assignee: Individual
•
Filing: 1955-08-05
•
Granted: 1959-02-24
•
Expires: 1975-08-05
Abstract
No abstract record available.
Inventors
- 👤 Simon Aaron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:18
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/12; A61G5/125; A61G5/128; Y; Y10; Y10S; Y10S297/00; Y10S297/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US830261A
Cited
US946842A
Cited
US2322683A
Cited
US2690788A
Cited
US2514655A
Cited
US2522759A
Cited
US2687765A
Cited
US2793682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |