US2865442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel supply systems for liquid fuel engines
Assignee: Bristol Siddeley Engines Ltd
•
Filing: 1954-07-23
•
Granted: 1958-12-23
•
Expires: 1974-07-23
Abstract
No abstract record available.
Inventors
- 👤 Halford Frank Bernard
- 👤 Crossland Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:30
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/22; F02C7/224; B; B01; B01D; B01D35/00; B01D35/14; B01D35/143; B01D35/147; B01D35/22; Y; Y10; Y10T; Y10T137/00; Y10T137/1189
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1991540A
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GB445724A
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US2499494A
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US2405888A
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US2552493A
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US2599699A
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US2598674A
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US2670082A
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US2656927A
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US2720313A
Cited
US2654482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |