Patent US561824A successfully refreshed from Google Patents.
Patent US2117788A successfully refreshed from Google Patents.
US2117788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aeroplane propeller
Assignee: Individual
•
Filing: 1936-04-17
•
Granted: 1938-05-17
•
Expires: 1956-04-17
Abstract
No abstract record available.
Inventors
- 👤 Cable Roy Percy
- 👤 Cable Cecil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:26
CPC Classifications
F; F03; F03D; F03D7/00; F03D7/02; F03D7/022; F03D7/0224; B; B64; B64C; B64C11/00; B64C11/30; B64C11/32; B64C11/34; B64C11/343; F05; F05B; F05B2260/00; F05B2260/70; F05B2260/74; F05B2260/75; F05B2260/77; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1941-05-16 | 1941-11-15 | 1942-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-05-16 | 1945-11-15 | 1946-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-05-16 | 1949-11-15 | 1950-05-17 | $7700.00 | Window Closed / Lapsed |