US2642237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic fuel feed control system for aircraft power plants
Assignee: English Electric Co Ltd
•
Filing: 1947-03-17
•
Granted: 1953-06-16
•
Expires: 1967-03-17
Abstract
No abstract record available.
Inventors
- 👤 Page Frederick William
- 👤 Hooker Stanley George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:57
CPC Classifications
B; B64; B64D; B64D37/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1418131A
Cited
GB274082A
Cited
US1978863A
Cited
US2160194A
Cited
US2272664A
Cited
US2450535A
Cited
US2391890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |