US2969738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injector
Assignee: Individual
•
Filing: 1956-05-14
•
Granted: 1961-01-31
•
Expires: 1976-05-14
Abstract
No abstract record available.
Inventors
- 👤 Otmar M Ulbing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:18
CPC Classifications
F; F02; F02M; F02M41/00; F02M41/08; F02M41/10; F02M69/00; F02M69/46; F02M69/50; F02M2700/00; F02M2700/05; F02M2700/055
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2223758A
Cited
US2223757A
Cited
US2223756A
Cited
US2223755A
Cited
US2274241A
Cited
US2521119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |