US2491609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airplane control wheel
Assignee: Individual
•
Filing: 1947-02-06
•
Granted: 1949-12-20
•
Expires: 1967-02-06
Abstract
No abstract record available.
Inventors
- 👤 Harry F George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:25
CPC Classifications
B; B64; B64C; B64C13/00; B64C13/02; B64C13/04; B64C13/042; B64C13/0423; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/2078; Y10T74/20834
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189510844A
Cited
DE192678C
Cited
US1647903A
Cited
US1738855A
Cited
FR751438A
Cited
US2204070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-19 | 1953-06-20 | 1953-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-19 | 1957-06-20 | 1957-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-19 | 1961-06-20 | 1961-12-20 | $7700.00 | Window Closed / Lapsed |