US2630675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel and starting system for gas-turbine engines
Assignee: Rolls Royce PLC
•
Filing: 1948-06-29
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Granted: 1953-03-10
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Expires: 1968-06-29
Abstract
No abstract record available.
Inventors
- 👤 Ballantyne David Havelock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:47
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/26; F02C7/268; F02C7/275; F02C7/277
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US997003A
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US1055550A
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US1088854A
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US2046074A
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US2056710A
Cited
US2279546A
Cited
US2476857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |