US3029204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acidic partial esters as lubricating oil additives
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1959-05-12
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Granted: 1962-04-10
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Expires: 1979-05-12
Abstract
No abstract record available.
Inventors
- 👤 Alfred H Matuszak
- 👤 Stephen J Metro
- 👤 Schwarz John Samuel Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:17
CPC Classifications
C; C10; C10M; C10M3/00; C10M2205/00; C10M2205/04; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/30; C10M2207/302; C10M2207/304; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/102; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/11; C10M2209/111; C10M2209/112; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/066; C10M2219/00; C10M2219/06; C10M2219/08; C10M2219/082; C10M2219/084; C10M2219/10; C10M2219/104; C10M2219/108; C10M2221/00; C10M2221/04; C10M2221/043; C10M2229/00; C10M2229/04; C10M2229/041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF CARBOXYLIC ACID ESTER LUBRICATING OIL AND WITHIN THE RANGE OF 0.01 TO ABOUT 2.0 WT. PERCENT, BASED ON THE WEIGHT OF SAID ESTER OIL, OF AN ACID PARTIAL ESTER DISSOLVED FICATIONS PRODUCT OF ABOUT 1.7 TO ABOTU 2.0 MOLAR PROPORTIUONS OF A C4 TO C12 ALKANDIOIC ACID WITH ONE MOLAR PROPORPORTION OF A C2 TO C36 GLYCOL.
Claim 2
Dependent Claim
66 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF CARBOXYLIC ACID ESTER LUBRICATING OIL AND WITHIN THE RANGE OF 0.01 TO ABOUT 2.0 WT. PERCENT, BASED ON THE WEIGHT OF SAID ESTER OIL, OF AN ACID PARTIAL ESTER DISSOLVED FICATIONS PRODUCT OF ABOUT 1.7 TO ABOTU 2.0 MOLAR PROPORTIUONS OF A C4 TO C12 ALKANDIOIC ACID WITH ONE MOLAR PROPORPORTION OF A C2 TO C36 GLYCOL.
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) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |