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Patent US2640472A successfully refreshed from Google Patents.
US2640472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multibabeel carburetor
Assignee: —
•
Filing: —
•
Granted: 1953-06-02
•
Expires: 1970-06-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:23
CPC Classifications
F; F02; F02M; F02M1/00; F02M1/04; F02M7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2390019A
Cited
US2391933A
Cited
US2420925A
Cited
US2452698A
Cited
US2095746A
Cited
US2315183A
Cited
US2252120A
Cited
US2322895A
Cited
US2379288A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |