Patent US2769306A successfully refreshed from Google Patents.
US2769306A
Expired / Lapsed
US
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Means for synchronizing the speeds of a pair of aircraft engines to which fuel is supplied by pumps and air by blowers
Assignee: ZF International UK Ltd
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Filing: 1950-11-16
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Granted: 1956-11-06
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Expires: 1970-11-16
Abstract
No abstract record available.
Inventors
- 👤 Harris Thomas Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:37
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/26; F02C9/42; B; B64; B64D; B64D31/00; B64D31/02; B64D31/06; B64D31/12; H; H02; H02P; H02P5/00; H02P5/46; H02P5/50
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |