Patent US2807526A successfully refreshed from Google Patents.
US2807526A
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Additive for motor fuels and fuel compositions containing the same
Assignee: Standard Oil Co
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Filing: 1950-10-04
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Granted: 1957-09-24
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Expires: 1970-10-04
Abstract
No abstract record available.
Inventors
- 👤 Robert W Foreman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:43
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/182; C10L1/1822; C10L1/1824; C10L1/185; C10L1/1852; C10L1/192; C10L1/198; C10L1/1985
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A MOTOR FUEL COMPOSITION CHARACTERIZED BY A RELATIVELY LOW TENDENCY TO FORM GUM DEPOSITS IN THE INTAKE SYSTEM AND VALVES OF AN INTERNAL COMBUSTION ENGINE AND A RELATIVELY LOW FREEZING POINT COMPRISING A MAJOR PROPORTION OF GASOLINE WHICH TENDS TO FORM GUM UPON STORAGE, AN AMOUNT WITHIN THE RANGE FROM 0.1 TO 2% BY VOLUME TO REDUCE THE INTAKE SYSTEM AND VALVE GUM DEPOSITS OF THE SAID GASOLINE OF AN OIL-SOLUBLE MONOBUTOXY POLY-1,2OXYPROPYLENE GLYCOL HAVING A VISCOSITYU OF FROM ABOUT 200 TO 1000 SUS AT 100*F., AND A WATER-MISCRIBLE LOWER ALIPHATIC HYDROCARBON ALCOHOL HAVING FROM ONE TO THREE CARBON ATOMS IN AN AMOUNT WITHIN THE RANGE FROM 0.025 TO 8% BY VOLUME OF THE FUEL TO FACILITATE THE SOLUTION OF THE POLYOXYALKYLENE COMPOUND IN THE FUEL AND TOGETHER WITH THE POLYOXYALKYLENE COMPOUND TO REDUCE THE FREEZING POINT OF WATER PRESENT IN THE FUEL.
Claim 2
Dependent Claim
143 words
A MOTOR FUEL COMPOSITION CHARACTERIZED BY A RELATIVELY LOW TENDENCY TO FORM GUM DEPOSITS IN THE INTAKE SYSTEM AND VALVES OF AN INTERNAL COMBUSTION ENGINE AND A RELATIVELY LOW FREEZING POINT COMPRISING A MAJOR PROPORTION OF GASOLINE WHICH TENDS TO FORM GUM UPON STORAGE, AN AMOUNT WITHIN THE RANGE FROM 0.1 TO 2% BY VOLUME TO REDUCE THE INTAKE SYSTEM AND VALVE GUM DEPOSITS OF THE SAID GASOLINE OF AN OIL-SOLUBLE MONOBUTOXY POLY-1,2OXYPROPYLENE GLYCOL HAVING A VISCOSITYU OF FROM ABOUT 200 TO 1000 SUS AT 100*F., AND A WATER-MISCRIBLE LOWER ALIPHATIC HYDROCARBON ALCOHOL HAVING FROM ONE TO THREE CARBON ATOMS IN AN AMOUNT WITHIN THE RANGE FROM 0.025 TO 8% BY VOLUME OF THE FUEL TO FACILITATE THE SOLUTION OF THE POLYOXYALKYLENE COMPOUND IN THE FUEL AND TOGETHER WITH THE POLYOXYALKYLENE COMPOUND TO REDUCE THE FREEZING POINT OF WATER PRESENT IN THE 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) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |