Patent US4363076A successfully refreshed from Google Patents.
US2851230A
Expired / Lapsed
US
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Mach number responsive control for aircraft fuel system
Assignee: HM Hobson Ltd
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Filing: 1954-01-05
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Granted: 1958-09-09
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Expires: 1974-01-05
Abstract
No abstract record available.
Inventors
- 👤 Greenland Leonard Sidney
- 👤 Stenning Kenneth Aubrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:03
CPC Classifications
B; B64; B64D; B64D37/00; B64D37/02; Y; Y10; Y10T; Y10T137/00; Y10T137/2278
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB575008A
Cited
US2497431A
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US2642237A
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US2599507A
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US2638739A
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US2677963A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |