Patent US2957463A successfully refreshed from Google Patents.
US2957463A
Expired / Lapsed
US
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Fuel cut-off for carburetor equipped engine
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1956-10-19
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Granted: 1960-10-25
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Expires: 1976-10-19
Abstract
No abstract record available.
Inventors
- 👤 Julius W Schnabel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:27
CPC Classifications
F; F02; F02M; F02M3/00; F02M3/02; F02M3/04; F02M3/055; Y; Y10; Y10S; Y10S261/00; Y10S261/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733696A
Cited
US1461662A
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US1982049A
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US2674443A
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US2749894A
Cited
US2724375A
Cited
US2764962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |