Patent US2542389A successfully refreshed from Google Patents.
US2542389A
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US
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Combined ignition timer and fuel injection unit
Assignee: Ambac International Corp
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Filing: 1946-11-09
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Granted: 1951-02-20
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Expires: 1966-11-09
Abstract
No abstract record available.
Inventors
- 👤 John J Broderick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:59
CPC Classifications
F; F02; F02M; F02M41/00; F02M41/02; F02M41/06; F02M59/00; F02M2700/00; F02M2700/13; F02M2700/1317; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86115
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1292981A
Cited
US1791600A
Cited
US1901448A
Cited
GB416676A
Cited
US2050392A
Cited
US2319566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |