US2851416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil composition
Assignee: Standard Oil Co
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Filing: 1956-01-30
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Granted: 1958-09-09
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Expires: 1976-01-30
Abstract
No abstract record available.
Inventors
- 👤 Albert R Sabol
- 👤 Robert E Karll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:42
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2223/00; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR PROPORTION OF LUBRICATING OIL IN COMBINATION THEREWITH A MAJOR PROPORTION, FROM ABOUT 0.001 PERCENT TO ABOUT 10 PERCENT BY WEIGHT, OF THE PRODUCT OBTAINED BY REACTING UNDER ANHYDROUS CONDITIONS AN OLIFINIC HYDROCARBON HAVING A MOLECULAR WEIGHT OF FROM ABOUT 150 TO ABOUT 50,000 WITH FROM ABOUT 1 PERCENT TO ABOUT 50 PERCENT BY WEIGHT OF PHOSPHROUS SULFIDE AT A TEMPERATURE OF FROM ABOUT 200*F. TO ABOUT 600*F., REACTING THE PHOSPHOROUS SULFIDE-OLIFINIC HYDROCARBON REACTION PRODUCT WITH AT LEAST ABOUT 3 PARTS BY WEIGHT OF A BASIC BARIUM COMPOUND PER PART OF PHOSPHOROUS PRESENT IN SAID PHOSPHORUS SULFIDE-OLEFINIC HYDROCARBON REACTION PRODUCT IN THE PRESENCE OF FROM ABOUT 0.5 TO ABOUT 5 PARTS BY WEIGHT OF AN ALIPHATIC ALCOHOL PER PART OF BASIC BARIUM COMPOUND, WHICH ALIPHATIC ALCOHOL HAS FROM ABOUT 1 TO ABOUT 12 CARBON ATOMS, AT A TEMPERATURE OF FROM ABOUT 100*F. TO A TEMPERATURE NOT SUBSTANTIALLY GREATER THAN THE BOILING POINT OF THE MIXTURE FOR AT LEAST ABOUT ONEHALF HOUR AND INCREASING THE TEMPERATURE TO REMOVE SAID ALCOHOL FROM THE REACTION MIXTURE.
Claim 2
Dependent Claim
178 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR PROPORTION OF LUBRICATING OIL IN COMBINATION THEREWITH A MAJOR PROPORTION, FROM ABOUT 0.001 PERCENT TO ABOUT 10 PERCENT BY WEIGHT, OF THE PRODUCT OBTAINED BY REACTING UNDER ANHYDROUS CONDITIONS AN OLIFINIC HYDROCARBON HAVING A MOLECULAR WEIGHT OF FROM ABOUT 150 TO ABOUT 50,000 WITH FROM ABOUT 1 PERCENT TO ABOUT 50 PERCENT BY WEIGHT OF PHOSPHROUS SULFIDE AT A TEMPERATURE OF FROM ABOUT 200*F. TO ABOUT 600*F., REACTING THE PHOSPHOROUS SULFIDE-OLIFINIC HYDROCARBON REACTION PRODUCT WITH AT LEAST ABOUT 3 PARTS BY WEIGHT OF A BASIC BARIUM COMPOUND PER PART OF PHOSPHOROUS PRESENT IN SAID PHOSPHORUS SULFIDE-OLEFINIC HYDROCARBON REACTION PRODUCT IN THE PRESENCE OF FROM ABOUT 0.5 TO ABOUT 5 PARTS BY WEIGHT OF AN ALIPHATIC ALCOHOL PER PART OF BASIC BARIUM COMPOUND, WHICH ALIPHATIC ALCOHOL HAS FROM ABOUT 1 TO ABOUT 12 CARBON ATOMS, AT A TEMPERATURE OF FROM ABOUT 100*F. TO A TEMPERATURE NOT SUBSTANTIALLY GREATER THAN THE BOILING POINT OF THE MIXTURE FOR AT LEAST ABOUT ONEHALF HOUR AND INCREASING THE TEMPERATURE TO REMOVE SAID ALCOHOL FROM THE REACTION MIXTURE.
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) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |