US2807525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Additive for motor fuels
Assignee: Standard Oil Co
•
Filing: 1954-07-13
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Granted: 1957-09-24
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Expires: 1974-07-13
Abstract
No abstract record available.
Inventors
- 👤 Robert W Foreman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:52
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
116 words
AN ADDITIVE FOR USE WITH MOTOR FUELS DERIVED FROM PETROLEUM IN ORDER TO PRODUCED A MOTOR FUEL COMPOSITION CHARACTERIZED BY A RELATIVELY LOW TENDENCY TO FORM GUM DEPOSITS INTHE INTAKE SYSTEM AND VALVES OF AN INTERNAL COMBUSTION ENGINE AND A RELATIVELY LOW FREEZING POINT COMPRISING AN OIL-SOLUBLE MONOBUTOXY POLY-1,2-OXYPROPYLENE GLYCOL HAVING A VISCOSITY OF FROM ABOUT 200 TO 1000 SUS AT 100*F., AND A WATER-MISCIBLE LOWER ALIPHATIC HYDROCARBON ALCOHOL HAVING FROM ONE TO THREE CARBON ATOMS IN AN AMOUNT WITHIN THE RANGE FROM 20% TO 80% BY VOLUME 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
116 words
AN ADDITIVE FOR USE WITH MOTOR FUELS DERIVED FROM PETROLEUM IN ORDER TO PRODUCED A MOTOR FUEL COMPOSITION CHARACTERIZED BY A RELATIVELY LOW TENDENCY TO FORM GUM DEPOSITS INTHE INTAKE SYSTEM AND VALVES OF AN INTERNAL COMBUSTION ENGINE AND A RELATIVELY LOW FREEZING POINT COMPRISING AN OIL-SOLUBLE MONOBUTOXY POLY-1,2-OXYPROPYLENE GLYCOL HAVING A VISCOSITY OF FROM ABOUT 200 TO 1000 SUS AT 100*F., AND A WATER-MISCIBLE LOWER ALIPHATIC HYDROCARBON ALCOHOL HAVING FROM ONE TO THREE CARBON ATOMS IN AN AMOUNT WITHIN THE RANGE FROM 20% TO 80% BY VOLUME 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.
References Cited (Backward Citations)
US2104021A
Cited
US2563101A
Cited
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 |