US2581764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metering fuel pump
Assignee: Individual
•
Filing: 1947-12-01
•
Granted: 1952-01-08
•
Expires: 1967-12-01
Abstract
No abstract record available.
Inventors
- 👤 William E Leibing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:13
CPC Classifications
F; F02; F02D; F02D1/00; F04; F04B; F04B49/00; F04B49/12; F04B49/123; F04B49/128; F04B1/00; F04B1/04; F04B1/0404; F04B1/0408; F04B1/0443; F04B1/0452; F04B1/0465; F04B1/06; F04B1/07; F04B1/10; F04B1/107; F04B1/1071; F04B1/1074; F04B1/1077; F02D2700/00; F02D2700/02; F02D2700/0269; F02D2700/0282; F02D2700/0284; F02D2700/0289
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |