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Patent US2877854A successfully refreshed from Google Patents.
US2877854A
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Synchrophaser resetting mechanism for variable pitch aircraft propellers
Assignee: RTX Corp
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Filing: 1955-12-27
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Granted: 1959-03-17
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Expires: 1975-12-27
Abstract
No abstract record available.
Inventors
- 👤 Charles B Brahm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:50
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/46; B64C11/50; H; H02; H02P; H02P5/00; H02P5/46; H02P5/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2431687A
Cited
US2482812A
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US2517703A
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US2673309A
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US2513222A
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US2747141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |