US3178149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve device for aiding the starting of internal combustion engines
Assignee: CAV Ltd
•
Filing: 1962-06-06
•
Granted: 1965-04-13
•
Expires: 1982-06-06
Abstract
No abstract record available.
Inventors
- 👤 Curzon Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:21
CPC Classifications
F; F01; F01L; F01L13/00; F01L13/08; F23; F23Q; F23Q7/00; F23Q7/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB674086A
Cited
US1451434A
Cited
AT134686B
Cited
US2526069A
Cited
US2647017A
Cited
US2769487A
Cited
US3022038A
Cited
US3010690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |