Patent US3959793A successfully refreshed from Google Patents.
US1894510A
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Fuel injection system
Assignee: Ambac International Corp
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Filing: 1928-10-10
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Granted: 1933-01-17
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Expires: 1948-10-10
Abstract
No abstract record available.
Inventors
- 👤 Roy F Ensign
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:01
CPC Classifications
F; F02; F02D; F02D9/00; F02D9/02; C; C10; C10H; C10H15/00; C10H15/22; F02M; F02M41/00; F02M41/08; F02M2700/00; F02M2700/13; F02M2700/1317; F02M2700/1329; 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) | 1936-01-17 | 1936-07-18 | 1937-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-01-17 | 1940-07-18 | 1941-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-01-17 | 1944-07-18 | 1945-01-17 | $7700.00 | Window Closed / Lapsed |