US2612960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically operated propeller pitch control
Assignee: Motors Liquidation Co
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Filing: 1945-12-17
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Granted: 1952-10-07
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Expires: 1965-12-17
Abstract
No abstract record available.
Inventors
- 👤 Clifford L Muzzey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:23
CPC Classifications
B; B63; B63H; B63H3/00; B63H3/06; B63H3/08; B64; B64C; B64C11/00; B64C11/30; B64C11/38; B64C11/42; B63H2003/088; Y; Y10; Y10S; Y10S60/00; Y10S60/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-07 | 1956-04-07 | 1956-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-07 | 1960-04-07 | 1960-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-07 | 1964-04-07 | 1964-10-07 | $7700.00 | Window Closed / Lapsed |