Patent US3273981A successfully refreshed from Google Patents.
US3273981A
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Anti-wear oil additives
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1963-07-16
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Granted: 1966-09-20
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Expires: 1983-07-16
Abstract
No abstract record available.
Inventors
- 👤 Michael J Furey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:54
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/08; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10M; C10M1/00; C10M1/08; C10L1/188; C10L1/1881; C10L1/1883; C10L1/189; C10L1/1895; C10L1/19; C10L1/1905; C10L1/191; C10M2205/00; C10M2205/18; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/14; C10M2207/142; C10M2207/22; C10M2207/28; C10M2207/282; C10M2207/287; C10M2207/289; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/086; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2219/10; C10M2219/104; C10M2219/108; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/10; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/02; C10N2040/12; C10N2040/13; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A HYDROCARBON MIDDLE DISTILLATE BOILING IN THE RANGE FROM 50* TO ABOUT 750*F. CONTAINING DISSOLVED THEREIN BETWEEN ABOUT 0.001 AND ABOUT 1.0 WT. PERCENT OF AN ADDITIVE MIXTURE COMPRISING A POLYCARBOXYLIC ACID OF BETWEEN ABOUT 9 AND ABOUT 42 CARBON ATOMS PER MOLECULE BETWEEN THE CARBOXYLIC ACID GROUPS AND A PARTIAL ESTER OF A POLYHYDRIC ALCOHOL OF BETWEEN ABOUT 3 AND ABOUT 8 CARBON ATOMS PER MOLECULE AND CONTAINING BETWEEN ABOUT 3 AND ABOUT 6 HYDROXYL GROUPS PER MOLECULE AND A C12 TO C22 FATTY ACID.
Claim 2
Dependent Claim
86 words
A HYDROCARBON MIDDLE DISTILLATE BOILING IN THE RANGE FROM 50* TO ABOUT 750*F. CONTAINING DISSOLVED THEREIN BETWEEN ABOUT 0.001 AND ABOUT 1.0 WT. PERCENT OF AN ADDITIVE MIXTURE COMPRISING A POLYCARBOXYLIC ACID OF BETWEEN ABOUT 9 AND ABOUT 42 CARBON ATOMS PER MOLECULE BETWEEN THE CARBOXYLIC ACID GROUPS AND A PARTIAL ESTER OF A POLYHYDRIC ALCOHOL OF BETWEEN ABOUT 3 AND ABOUT 8 CARBON ATOMS PER MOLECULE AND CONTAINING BETWEEN ABOUT 3 AND ABOUT 6 HYDROXYL GROUPS PER MOLECULE AND A C12 TO C22 FATTY 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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |