US1976480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerofoil
Assignee: Curtiss Aeroplane and Motor Corp
•
Filing: 1931-10-29
•
Granted: 1934-10-09
•
Expires: 1951-10-29
Abstract
No abstract record available.
Inventors
- 👤 Ralph D Carleton
- 👤 Raymond C Blaylock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:42
CPC Classifications
B; B64; B64C; B64C3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-10-08 | 1938-04-09 | 1938-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-10-08 | 1942-04-09 | 1942-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-10-08 | 1946-04-09 | 1946-10-09 | $7700.00 | Window Closed / Lapsed |