US2853947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid fuel injection pumps for engines
Assignee: CAV Ltd
•
Filing: 1954-03-15
•
Granted: 1958-09-30
•
Expires: 1974-03-15
Abstract
No abstract record available.
Inventors
- 👤 Evans Fraser Mackie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:23
CPC Classifications
F; F02; F02M; F02M41/00; F02M41/08; F02M41/14; F02M41/1405; F02M41/1411
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1974225A
Cited
US2265692A
Cited
US2407923A
Cited
US2582535A
Cited
US2640419A
Cited
US2657631A
Cited
US2780173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |