US2486816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel mixture control for internal combustion engines
Assignee: Bulova Watch Co Inc
•
Filing: 1946-08-28
•
Granted: 1949-11-01
•
Expires: 1966-08-28
Abstract
No abstract record available.
Inventors
- 👤 Bech Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:29
CPC Classifications
F; F02; F02D; F02D9/00; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/022; F02D2700/0223
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2217364A
Cited
US2341257A
Cited
GB537028A
Cited
US2383563A
Cited
US2374844A
Cited
US2419171A
Cited
US2416797A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |