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Patent US2920876A successfully refreshed from Google Patents.
US2920876A
Expired / Lapsed
US
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Carburetor enriching device
Assignee: ACF Industries Inc
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Filing: 1957-08-30
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Granted: 1960-01-12
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Expires: 1977-08-30
Abstract
No abstract record available.
Inventors
- 👤 Morris C Brown
- 👤 Wenford E Highley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:40
CPC Classifications
F; F02; F02M; F02M7/00; F02M7/12; F02M7/18; F02M7/20; F02M1/00; F02M1/08; F02M1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |