US2760934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic lubricant
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-05-28
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Granted: 1956-08-28
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Expires: 1973-05-28
Abstract
No abstract record available.
Inventors
- 👤 James F Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:41
CPC Classifications
C; C10; C10M; C10M3/00; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/10; C10M2219/104; C10M2219/108; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10N; C10N2010/00; C10N2010/04; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A SYNTHETIC LUBRICATING OIL COMPOSITION WHICH CONSISTS ESSENTIALLY OF A DIESTER FORMED BY ESTERIFICATION OF ADIPIC ACID WITH A MIXTURE OF ALCOHOLS OBTAINED BY SUBJECTIONG A C7 OLEFIN TO THE ACTION OF CARBON MONOXIDE AND HYDROGEN AT A TEMPERATURE OF ABOUT 300* TO 400* F. AND A PRESSURE OF ABOUT 1,000 TO 3,000 P.S.I. IN THE PRESENCE OF A COBALT CARBONYL CATALYST, SAID MIXTURE OF ALCOHOLS HAVING THE APPROXIMATE COMPOSITION OF CONTAINING COMBINED THEREIN ABOUT 3% BY WEIGHT OF TRICRESYL PHOSPHATE, AND ABOUT 0.75% BY WEIGHT OF A METAL SOAP OF A PETROLEUM SULFONIC ACID, SAID METAL SELECTED FROM THE GROUP CONSISTING OF SODIUM AND CALCIUM.
Claim 2
Dependent Claim
106 words
A SYNTHETIC LUBRICATING OIL COMPOSITION WHICH CONSISTS ESSENTIALLY OF A DIESTER FORMED BY ESTERIFICATION OF ADIPIC ACID WITH A MIXTURE OF ALCOHOLS OBTAINED BY SUBJECTIONG A C7 OLEFIN TO THE ACTION OF CARBON MONOXIDE AND HYDROGEN AT A TEMPERATURE OF ABOUT 300* TO 400* F. AND A PRESSURE OF ABOUT 1,000 TO 3,000 P.S.I. IN THE PRESENCE OF A COBALT CARBONYL CATALYST, SAID MIXTURE OF ALCOHOLS HAVING THE APPROXIMATE COMPOSITION OF CONTAINING COMBINED THEREIN ABOUT 3% BY WEIGHT OF TRICRESYL PHOSPHATE, AND ABOUT 0.75% BY WEIGHT OF A METAL SOAP OF A PETROLEUM SULFONIC ACID, SAID METAL SELECTED FROM THE GROUP CONSISTING OF SODIUM AND CALCIUM.
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) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |