Patent US2625347A successfully refreshed from Google Patents.
US2625347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tiltable propeller for aircraft
Assignee: Curtiss Wright Corp
•
Filing: 1948-11-06
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Granted: 1953-01-13
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Expires: 1968-11-06
Abstract
No abstract record available.
Inventors
- 👤 Robert O Froling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:38
CPC Classifications
B; B64; B64C; B64C23/00; B64C23/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB383494A
Cited
FR539323A
Cited
FR24728E
Cited
US1601062A
Cited
US1763590A
Cited
US1889273A
Cited
US1832433A
Cited
US2023334A
Cited
US1889766A
Cited
US2176476A
Cited
US2343288A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |