Patent US3022425A successfully refreshed from Google Patents.
US3022425A
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Dual fuel control systems for engines burning diesel-type fuels
Assignee: Midland Ross Corp
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Filing: 1956-07-11
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Granted: 1962-02-20
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Expires: 1976-07-11
Abstract
No abstract record available.
Inventors
- 👤 Joel B Rockstead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:55
CPC Classifications
F; F02; F02D; F02D19/00; F02D19/06; F02D19/0602; F02D19/0613; F02D19/0615; F02D19/0626; F02D19/0634; F02D19/0639; F02D19/0649; F02D19/0657; F02D19/0663; F02D19/0673; F02D19/0676; F02M; F02M31/00; F02M31/02; F02M31/16; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y02T10/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1819474A
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US1881200A
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US2059334A
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US2163241A
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US2231764A
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US2129930A
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US2681694A
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US2768496A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |