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US2482254A
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Fuel-air ratio control system
Assignee: Fairchild Semiconductor Corp
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Filing: 1944-11-08
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Granted: 1949-09-20
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Expires: 1964-11-08
Abstract
No abstract record available.
Inventors
- 👤 Sherman M Fairchild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:31
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/02; F02D41/18; G; G05; G05D; G05D11/00; G05D11/02; G05D11/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2330650A
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US2285344A
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US2395648A
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US2399077A
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US2316300A
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US2372356A
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US2391755A
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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) | 1952-09-19 | 1953-03-21 | 1953-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-19 | 1957-03-21 | 1957-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-19 | 1961-03-21 | 1961-09-20 | $7700.00 | Window Closed / Lapsed |