Patent US3514948A successfully refreshed from Google Patents.
US3514948A
Expired / Lapsed
US
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Fuel control systems for gas turbine engines
Assignee: ZF International UK Ltd
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Filing: 1968-06-06
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Granted: 1970-06-02
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Expires: 1988-06-06
Abstract
No abstract record available.
Inventors
- 👤 Eugene Harold Warne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:29
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/26; F02C9/32; F02C9/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2688229A
Cited
US2747369A
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US3049139A
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US2950597A
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US3177921A
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US3131750A
Cited
US3164202A
Cited
US3368349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |