US2690167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual fuel engine control system
Assignee: Marquette Metal Products Co
•
Filing: 1951-04-06
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Granted: 1954-09-28
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Expires: 1971-04-06
Abstract
No abstract record available.
Inventors
- 👤 Moulton Lloyd Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:17
CPC Classifications
F; F02; F02D; F02D19/00; F02D19/06; F02D19/0602; F02D19/0607; F02D19/08; F02D19/10; F02D19/105; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2489405A
Cited
US2518400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |