US2918360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel compositions for spark ignition engines
Assignee: Sunoco Inc
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Filing: 1957-03-06
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Granted: 1959-12-22
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Expires: 1977-03-06
Abstract
No abstract record available.
Inventors
- 👤 James L Lauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:25
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A SPARK IGNITION INTERNAL COMBUSTION ENGINE FUEL COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF A MIXTURE OF PETROLEUM HYDROCARBONS BOILING IN THE GASOLINE RANGE, AN ANTI-KNOCK AMOUNT OF AN ORGANOLEAD ANTI-KNOCK ADDITIVE AND A MINOR AMOUNT, SUFFICIENT TO SUBSTANTIALLY REDUCE SPARK PLUG FOULING, OF A PETROLEUM NAHTHENATE ESTER OF A MONOHYDRIC ALCOHOL, SAID MONOHYDRIC ALCHOL BEING SELECTED FROM THE GROUP CONSISTING OF CYCLOPENTANOL, CYCLOHEXANOL, PHENYLCARBINOL, PHENYLETHYL ALCOHOL, PHENYLPROPYL ALCOHOL AND THIENYL CARBINOL.
Claim 2
Dependent Claim
73 words
A SPARK IGNITION INTERNAL COMBUSTION ENGINE FUEL COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF A MIXTURE OF PETROLEUM HYDROCARBONS BOILING IN THE GASOLINE RANGE, AN ANTI-KNOCK AMOUNT OF AN ORGANOLEAD ANTI-KNOCK ADDITIVE AND A MINOR AMOUNT, SUFFICIENT TO SUBSTANTIALLY REDUCE SPARK PLUG FOULING, OF A PETROLEUM NAHTHENATE ESTER OF A MONOHYDRIC ALCOHOL, SAID MONOHYDRIC ALCHOL BEING SELECTED FROM THE GROUP CONSISTING OF CYCLOPENTANOL, CYCLOHEXANOL, PHENYLCARBINOL, PHENYLETHYL ALCOHOL, PHENYLPROPYL ALCOHOL AND THIENYL CARBINOL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |