US3287283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricants containing copolymers of unsaturated esters of dicarboxylic acid and nu-vinylbutyrolactam
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1964-01-09
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Granted: 1966-11-22
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Expires: 1984-01-09
Abstract
No abstract record available.
Inventors
- 👤 Stephen J Metro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:58
CPC Classifications
C; C10; C10M; C10M169/00; C10M169/04; C10M169/044; C08; C08F; C08F222/00; C08F222/10; C08F222/12; C08F222/14; C08F222/145; C10M105/00; C10M105/08; C10M105/32; C10M105/36; C10M105/38; C10M105/42; C10M129/00; C10M129/02; C10M129/26; C10M129/28; C10M129/38; C10M129/42; C10M129/68; C10M129/76; C10M131/00; C10M131/02; C10M131/06; C10M133/00; C10M133/02; C10M133/04; C10M133/12; C10M135/00; C10M135/32; C10M135/36; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M149/00; C10M149/02; C10M149/10; C10M155/00; C10M155/02; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/125; C10M2207/127; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/2825; C10M2207/283; C10M2207/2835; C10M2207/285; C10M2207/2855; C10M2207/286; C10M2207/287; C10M2207/288; C10M2207/289; C10M2207/30; C10M2207/301; C10M2207/304; C10M2207/34; C10M2211/00; C10M2211/02; C10M2211/024; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/066; C10M2215/067; C10M2215/068; C10M2217/00; C10M2217/02; C10M2217/028; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/10; C10M2219/104; C10M2219/106; C10M2219/108; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/045; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/043; C10M2229/044; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10M2229/05; C10M2229/051; C10M2229/052; C10M2229/053; C10M2229/054
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AN AVIATION LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A CARBOXYLIC ACID ESTER LUBRICATING OIL, AND DISSOLVED THEREIN AS A SLUDGE DISPERSANT, ABOUT 0.1 TO 10.0 WT. PERCENT, BASED ON THE WEIGHT OF THE TOTAL COMPOSITION, OF A COPOLYMER CONSISTING ESSENTIALLY OF (A) N-VINYLBUTYROLACTAM HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
49 words
AN AVIATION LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A CARBOXYLIC ACID ESTER LUBRICATING OIL, AND DISSOLVED THEREIN AS A SLUDGE DISPERSANT, ABOUT 0.1 TO 10.0 WT. PERCENT, BASED ON THE WEIGHT OF THE TOTAL COMPOSITION, OF A COPOLYMER CONSISTING ESSENTIALLY OF (A) N-VINYLBUTYROLACTAM HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
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US2888410A
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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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |