US2659444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded aircraft sustaining rotor blade
Assignee: Autogiro Company of America
•
Filing: 1949-06-21
•
Granted: 1953-11-17
•
Expires: 1969-06-21
Abstract
No abstract record available.
Inventors
- 👤 Paul H Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:31
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0025; B29D99/0028; B64; B64C; B64C27/00; B64C27/32; B64C27/46; B64C27/473; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49336; Y10T29/49339
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1843206A
Cited
US1937966A
Cited
US2231888A
Cited
US2259247A
Cited
US2214622A
Cited
US2412908A
Cited
US2458975A
Cited
US2457202A
Cited
US2454200A
Cited
US2482217A
Cited
US2484141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |