Patent US3102098A successfully refreshed from Google Patents.
US3102098A
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Lubricating compositions comprising esters of tricarboxy acids
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-05-01
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Granted: 1963-08-27
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Expires: 1979-05-01
Abstract
No abstract record available.
Inventors
- 👤 Stephen J Metro
- 👤 Alfred H Matuszak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:19
CPC Classifications
C; C10; C10M; C10M3/00; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/288; C10M2207/289; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/066; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/10; C10M2219/104; C10M2219/108; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF SYNTHETIC ESTER LUBRICATING OIL PREPARED BY COMPLETE ESTERIFICATION OF A DICARBOXYLIC ACID AND A MINOR LOAD-CARRYING AMOUNT OF A C3 TO C20 ALKYL PARTIAL ESTER OF A C6 TO C7 TRICARBOXY ALIPHATIC ACID.
Claim 2
Dependent Claim
42 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF SYNTHETIC ESTER LUBRICATING OIL PREPARED BY COMPLETE ESTERIFICATION OF A DICARBOXYLIC ACID AND A MINOR LOAD-CARRYING AMOUNT OF A C3 TO C20 ALKYL PARTIAL ESTER OF A C6 TO C7 TRICARBOXY ALIPHATIC ACID.
References Cited (Backward Citations)
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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) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |