Patent US2674236A successfully refreshed from Google Patents.
US2674236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection pump
Assignee: Ambac International Corp
•
Filing: 1952-03-29
•
Granted: 1954-04-06
•
Expires: 1972-03-29
Abstract
No abstract record available.
Inventors
- 👤 John N Humber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:28
CPC Classifications
F; F02; F02M; F02M41/00; F02M41/08; F02M41/14; F02M41/1405; F02M41/1411
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2147390A
Cited
US2270263A
Cited
US2391221A
Cited
US2465784A
Cited
US2516147A
Cited
GB657759A
Cited
US2641238A
Cited
US2518473A
Cited
US2660992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |