Patent US2956791A successfully refreshed from Google Patents.
US2956791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburetor
Assignee: Individual
•
Filing: 1958-11-28
•
Granted: 1960-10-18
•
Expires: 1978-11-28
Abstract
No abstract record available.
Inventors
- 👤 Charles E Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:46
CPC Classifications
F; F02; F02M; F02M17/00; F02M17/14; F02M15/00; F02M15/02; F02M15/027; F02M7/00; F02M7/12; F02M7/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1681937A
Cited
US1654622A
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US1809242A
Cited
US1737587A
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US2128079A
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US2261446A
Cited
US2339105A
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US2460528A
Cited
US2892692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |