US2481032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic adjustable pitch propeller
Assignee: Individual
•
Filing: 1945-10-27
•
Granted: 1949-09-06
•
Expires: 1965-10-27
Abstract
No abstract record available.
Inventors
- 👤 Alva I Mount
- 👤 Kenneth A Raypholtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:24
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/30; B64C11/32; B64C11/34; Y; Y10; Y10S; Y10S416/00; Y10S416/50; Y10T; Y10T74/00; Y10T74/19; Y10T74/1956
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US612511A
Cited
US1650776A
Cited
US1008953A
Cited
GB190908431A
Cited
US1929436A
Cited
US2139982A
Cited
US2179492A
Cited
US2404743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-05 | 1953-03-07 | 1953-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-05 | 1957-03-07 | 1957-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-05 | 1961-03-07 | 1961-09-06 | $7700.00 | Window Closed / Lapsed |