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US3011879A
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Detergent automotive fuel
Assignee: Union Oil Company of California
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Filing: 1958-01-20
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Granted: 1961-12-05
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Expires: 1978-01-20
Abstract
No abstract record available.
Inventors
- 👤 John P Buckmann
- 👤 Francis S Liggett
- 👤 Edward L Wiseman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:48
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/16; C10L1/1616; C10L1/22; C10L1/222; C10L1/2222; C10L1/228; C10L1/2283
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
86 words
AN INTERNAL COMBUSTION ENGINE FUEL CONSISTING ESSENTIALLY OF HYDROCARBONS IN THE GASOLINE BOILING RAGE CONTAINING BETWEEN ABOUT 0.00004% AND ABOUT 0.02% BY WEIGHT OF STRAIGHT CHAIN, UNSUBSTITUTED, ALIPHATIC PRIMARY AMINE CONTAINING BETWEEN ABOUT 12 AND ABOUT 22 CARBON ATOMS, AND BETWEEN ABOUT 0.02% AND ABOUT 0.6% BY WEIGHT OF A PARAFFINIC HYDROCARBON OIL HAVING A VISCOSITY AT 210*F. BETWEEN 42 AND 78 SSU AND A FLASH POINT OF A LEAST 400*F., AND BETWEEN ABOUT 0.00004% AND ABOUT 0.0012% BY WEIGHT OF A COMPOUND OF THE FORMULA
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |