Patent US3856687A successfully refreshed from Google Patents.
US3856687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acid neutralizing accelerating compositions
Assignee: Chevron USA Inc
•
Filing: 1973-11-05
•
Granted: 1974-12-24
•
Expires: 1993-11-05
Abstract
Abstract Acid neutralization accelerating compositions are disclosed comprising: (a) lubricating oil base, (b) an imidazoline polyalkoxylated compound, (c) a sulfonate or phenate dispersant, and (d) an alkaline earth metal carbonate.
Inventors
- 👤 W Lowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:33
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/20; C10M2201/00; C10M2201/06; C10M2201/062; C10M2203/00; C10M2203/10; C10M2203/102; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/027; C10M2207/028; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/106; C10M2209/107; C10M2209/109; C10M2209/11; C10M2209/111; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/062; C10M2215/064; C10M2215/086; C10M2215/10; C10M2215/22; C10M2215/223; C10M2215/224; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2223/047; C10M2223/06; C10M2223/065; C10N; C10N2010/00; C10N2010/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
34 words
A LUBRICATING OIL COMPOSITION COMPRISING: A MAJOR AMOUNT OF A HYDROCARBON OIL OF LUBRICATING VISCOSITY; FROM ABOUT 0.01 TO 5 WEIGHT PERCENT OF AT LEAST ONE OIL-SOLUBLE ACID NEUTRALIZATION ACCELERATING COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
34 words
A LUBRICATING OIL COMPOSITION COMPRISING: A MAJOR AMOUNT OF A HYDROCARBON OIL OF LUBRICATING VISCOSITY; FROM ABOUT 0.01 TO 5 WEIGHT PERCENT OF AT LEAST ONE OIL-SOLUBLE ACID NEUTRALIZATION ACCELERATING COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
25 words
A composition according to claim 1 wherein said dispersant is a sulfonate dispersant derived from a sulfonic acid of from 25 to 50 carbon atoms.
Claim 4
Dependent Claim
39 words
A composition according to claim 1 wherein said dispersant is a phenate derived from alkylated phenol or polymerized alkylated phenols having 2 to 5 phenol groups per molecule and an alkyl group of from 12 to 30 carbon atoms.
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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |