Patent US2986291A successfully refreshed from Google Patents.
US2986291A
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Fuel injection system
Assignee: Allis Chalmers Corp
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Filing: 1957-07-09
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Granted: 1961-05-30
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Expires: 1977-07-09
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Schick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:06
CPC Classifications
F; F02; F02M; F02M59/00; F02M59/44; F02M59/447; F02D; F02D1/00; F02D1/02; F02D1/08; F02D1/10; F02D2700/00; F02D2700/02; F02D2700/0269; F02D2700/0282; F02D2700/0284; F02D2700/0287
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1117263A
Cited
US1561773A
Cited
GB408760A
Cited
GB432839A
Cited
US2529437A
Cited
FR1144626A
Cited
US2811265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |