Patent US2664152A successfully refreshed from Google Patents.
US2664152A
Expired / Lapsed
US
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Fuel system for gas turbine engines
Assignee: Rolls Royce PLC
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Filing: 1948-05-11
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Granted: 1953-12-29
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Expires: 1968-05-11
Abstract
No abstract record available.
Inventors
- 👤 Davies Kenneth Roy
- 👤 Herbstritt Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:51
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/22; F04; F04B; F04B49/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1381512A
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US2219994A
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US2445113A
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US2384282A
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US2405888A
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US2481334A
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US2457595A
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US2514674A
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US2545703A
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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) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |