US2962439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel and lubricant additives for reducing combustion chamber deposits
Assignee: Sunoco Inc
•
Filing: 1956-12-07
•
Granted: 1960-11-29
•
Expires: 1976-12-07
Abstract
No abstract record available.
Inventors
- 👤 James L Lauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:06
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10L; C10L1/00; C10L1/10; C10L1/12; C10L1/1233; C10L1/14; C10L1/18; C10L1/188; C10L1/1881; C10L1/22; C10L1/232; C10M2201/00; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/084; C10M2201/085; C10M2201/086; C10M2207/00; C10M2207/09; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/123; C10M2207/129; C10M2207/22; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10N; C10N2010/00; C10N2010/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A COMPOSITION CONSISTING ESSENTIALLY OF A LIQUID PETROLEUM FRACTION FOR USE IN SPARK IGNITION INTERNAL COMBUSTION ENGINES SELECTED FROM THE GROUP CONSISTING OF GASOLINE AND LUBRICATING OIL, AND A SMALL AMOUNT, SUFFICIENT TO REDUCE THE ACCUMULATION OF COMBUSTION CHAMBER DEPOSITS IN EACH ENGINES, OF A MIXTURE COMPOSED OF AT LEAST 80 MOLE PERCENT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PYRIDINE, QUINOLINE, AND MIXTURES THEREOF, AND UP TO AND INCLUDING 20 MOLE PERCENT OF AN ANHYDROUS COPPER SALT SELECTED FROM THE GROUP CONSISTING OF COPPER CHORMITE AND COPPER ACETATE.
Claim 2
Dependent Claim
91 words
A COMPOSITION CONSISTING ESSENTIALLY OF A LIQUID PETROLEUM FRACTION FOR USE IN SPARK IGNITION INTERNAL COMBUSTION ENGINES SELECTED FROM THE GROUP CONSISTING OF GASOLINE AND LUBRICATING OIL, AND A SMALL AMOUNT, SUFFICIENT TO REDUCE THE ACCUMULATION OF COMBUSTION CHAMBER DEPOSITS IN EACH ENGINES, OF A MIXTURE COMPOSED OF AT LEAST 80 MOLE PERCENT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PYRIDINE, QUINOLINE, AND MIXTURES THEREOF, AND UP TO AND INCLUDING 20 MOLE PERCENT OF AN ANHYDROUS COPPER SALT SELECTED FROM THE GROUP CONSISTING OF COPPER CHORMITE AND COPPER ACETATE.
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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) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |