US1779374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel-supply system for internal-combustion engines
Assignee: Ambac International Corp
•
Filing: 1928-11-13
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Granted: 1930-10-21
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Expires: 1948-11-13
Abstract
No abstract record available.
Inventors
- 👤 Roy F Ensign
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:29
CPC Classifications
F; F02; F02M; F02M57/00; F02M57/02; F02D; F02D9/00; F02D9/02; F02M59/00; F02M59/20; F02M59/34; F02M2700/00; F02M2700/13; F02M2700/1317; F02M2700/1335; Y; Y10; Y10S; Y10S261/00; Y10S261/37
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1933-10-20 | 1934-04-21 | 1934-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-10-20 | 1938-04-21 | 1938-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-10-20 | 1942-04-21 | 1942-10-21 | $7700.00 | Window Closed / Lapsed |