Patent US3518023A successfully refreshed from Google Patents.
US3518023A
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US
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Standby control system for multi-engine power plants
Assignee: Rolls Royce PLC
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Filing: 1968-06-17
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Granted: 1970-06-30
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Expires: 1988-06-17
Abstract
No abstract record available.
Inventors
- 👤 Colin G Britten
- 👤 Patrick John Ashmole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:16
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/20; F02C3/30; F02C3/305; F02C9/00; F02C9/26; F02C9/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB617729A
Cited
US2595345A
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US2795107A
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US2768504A
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US2737776A
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US2912822A
Cited
US2942416A
Cited
US3049880A
Cited
US3434281A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |