Patent US2923440A successfully refreshed from Google Patents.
US2989065A
Expired / Lapsed
US
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Fuel control unit for internal combustion engines
Assignee: Motors Liquidation Co
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Filing: 1957-07-15
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Granted: 1961-06-20
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Expires: 1977-07-15
Abstract
No abstract record available.
Inventors
- 👤 Archie D Mcduffie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:46
CPC Classifications
F; F02; F02M; F02M69/00; F02M69/16; F02M69/18; F02M69/20; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2521; Y10T137/2559; Y10T137/2564
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2042300A
Cited
US2411287A
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US2450833A
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US2455344A
Cited
US2641237A
Cited
US2450826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |