Patent US3020134A successfully refreshed from Google Patents.
US3020134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive fuel
Assignee: Union Oil Company of California
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Filing: 1955-03-07
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Granted: 1962-02-06
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Expires: 1975-03-07
Abstract
No abstract record available.
Inventors
- 👤 James L Keller
- 👤 Francis S Liggett
- 👤 Chester E Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:38
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/16; C10L1/1616; C10L1/26; C10L1/2633; C10L1/2658
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
AN INTERNAL COMBUSTION ENGINE FUEL CONSISTING ESSENTIALLY OF HYDROCARBONS BOILING IN THE GASOLINE BOILING RANGE CONTAINING BETWEEN ABOUT 0.0013% AND ABOUT 0.005% BY WEIGHT OF LECITHIN AND BETWEEN ABOUT 0.01% AND ABOUT 1.5% BY WEIGHT O A PARAFFINIC HYDROCARBON OIL OF MEDIUM LUBRICATING OIL GRADE HAVING A VISCOSITY AT 210*F. OF BETWEEN ABOUT 42 AND ABOUT 78 S.S.U., A FLASH POINT BETWEEN 410*F. AND 500*F., AND A VISCOSITY INDEX GREATER THAN 60, THE AMOUNT OF MINERAL LUBRICATING OIL BEING BETWEEN 3.25 AND 9.75 TIMES THE AMOUNT OF LECITHIN PRESENT.
Claim 2
Dependent Claim
89 words
AN INTERNAL COMBUSTION ENGINE FUEL CONSISTING ESSENTIALLY OF HYDROCARBONS BOILING IN THE GASOLINE BOILING RANGE CONTAINING BETWEEN ABOUT 0.0013% AND ABOUT 0.005% BY WEIGHT OF LECITHIN AND BETWEEN ABOUT 0.01% AND ABOUT 1.5% BY WEIGHT O A PARAFFINIC HYDROCARBON OIL OF MEDIUM LUBRICATING OIL GRADE HAVING A VISCOSITY AT 210*F. OF BETWEEN ABOUT 42 AND ABOUT 78 S.S.U., A FLASH POINT BETWEEN 410*F. AND 500*F., AND A VISCOSITY INDEX GREATER THAN 60, THE AMOUNT OF MINERAL LUBRICATING OIL BEING BETWEEN 3.25 AND 9.75 TIMES THE AMOUNT OF LECITHIN PRESENT.
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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) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |