US2576450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary carburetion device
Assignee: Individual
•
Filing: 1949-11-21
•
Granted: 1951-11-27
•
Expires: 1969-11-21
Abstract
No abstract record available.
Inventors
- 👤 Marval Cirilo De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:31
CPC Classifications
F; F02; F02M; F02M25/00; F02M25/022; F02M25/032; F02M25/035; F02M26/00; F02M26/13; F02M26/14; F02M26/36; F02M27/00; F02M27/04; F02M26/42; F02M26/44; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US892378A
Cited
US1108608A
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US1262034A
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US1257053A
Cited
US1259898A
Cited
US1333836A
Cited
US1333837A
Cited
US1333838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |