Patent US2944645A successfully refreshed from Google Patents.
US2944645A
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US
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Throttle control systems for engines driving forward and reverse gears
Assignee: Bristol Aero Engines Ltd
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Filing: 1955-12-19
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Granted: 1960-07-12
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Expires: 1975-12-19
Abstract
No abstract record available.
Inventors
- 👤 Markham Basil Gervase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:14
CPC Classifications
B; B63; B63H; B63H21/00; B63H21/22; B63H21/21; B63H21/213; F; F16; F16H; F16H3/00; B63H23/00; B63H23/02; B63H23/08; B63H23/30; F16H2712/00; F16H2712/04; Y; Y10; Y10S; Y10S74/00; Y10S74/02
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) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |