Patent US3034875A successfully refreshed from Google Patents.
US3034875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive fuel
Assignee: Union Oil Company of California
•
Filing: 1956-08-06
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Granted: 1962-05-15
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Expires: 1976-08-06
Abstract
No abstract record available.
Inventors
- 👤 John P Buckmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:56
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
103 words
AN INTERNAL COMBUSTION ENGINE FUEL CONSISTING ESSENTIALLY OF HYDROCARBON BOILING IN THE GASOLINE BOILING RANGE CONTAINING LESS THAN ABOUT 0.002% BY WEIGHT OF LECITHIN BUT SUFFICIENT TO IMPART REDUCED ORI CHARACTERISTICS TO SAID FUEL, AND CONTAINING ALSO LESS THAN ABOUT 0.01% BY WEIGHT OF A PARAFFINIC HYDROCARBON OIL OF MEDIUM LUBRICATING OIL GRADE HAVING A VICOSITY 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 ABOUT 60, BUT SUFFICIENT TO PREVENT DIPOSITION OF SAID LECITHIN IN THE INDUCTION SYSTEM OF AN ENGINE OPERATING ON SAID FUEL.
Claim 2
Dependent Claim
103 words
AN INTERNAL COMBUSTION ENGINE FUEL CONSISTING ESSENTIALLY OF HYDROCARBON BOILING IN THE GASOLINE BOILING RANGE CONTAINING LESS THAN ABOUT 0.002% BY WEIGHT OF LECITHIN BUT SUFFICIENT TO IMPART REDUCED ORI CHARACTERISTICS TO SAID FUEL, AND CONTAINING ALSO LESS THAN ABOUT 0.01% BY WEIGHT OF A PARAFFINIC HYDROCARBON OIL OF MEDIUM LUBRICATING OIL GRADE HAVING A VICOSITY 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 ABOUT 60, BUT SUFFICIENT TO PREVENT DIPOSITION OF SAID LECITHIN IN THE INDUCTION SYSTEM OF AN ENGINE OPERATING ON SAID FUEL.
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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) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |