US3431900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection systems
Assignee: Petrol Injection Ltd
•
Filing: 1966-11-28
•
Granted: 1969-03-11
•
Expires: 1986-11-28
Abstract
No abstract record available.
Inventors
- 👤 Harold Ernest Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:38
CPC Classifications
F; F02; F02M; F02M69/00; F02M69/30; F02M69/36; F02M69/38; F02M69/386; F02M69/16; F02M69/18; F02M69/383
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2656848A
Cited
US2924206A
Cited
US2940435A
Cited
US3036564A
Cited
US3019603A
Cited
US3285233A
Cited
US3330300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |