US2711796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable pitch propeller mechanism
Assignee: Individual
•
Filing: 1951-02-21
•
Granted: 1955-06-28
•
Expires: 1971-02-21
Abstract
No abstract record available.
Inventors
- 👤 Amiot Felix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:49
CPC Classifications
B; B63; B63H; B63H3/00; B63H3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190812595A
Cited
US1879659A
Cited
US2531032A
Cited
US2187754A
Cited
US2386587A
Cited
US2543453A
Cited
US2620040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-27 | 1958-12-27 | 1959-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-27 | 1962-12-27 | 1963-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-27 | 1966-12-27 | 1967-06-28 | $7700.00 | Window Closed / Lapsed |