US3884821A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polybutenyl-alkylene polyamine-polyalkanol lubricant additive and lubricating compositions containing same
Assignee: Texaco Inc
•
Filing: 1973-10-19
•
Granted: 1975-05-20
•
Expires: 1993-10-19
Abstract
Abstract IN WHICH R is a polybutenyl radical having a molecular weight from 900 to 10,000 and a mineral lubricating oil composition containing said polybutenyl-alkylene polyamine polyalkanol. Polybutenyl-alkylene polyamine-polyalkanol ashless dispersant lubricant additive represented by the general formula:
Inventors
- 👤 Edward F Miller
- 👤 Walter W Hellmuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:48
CPC Classifications
C; C10; C10M; C10M133/00; C10M133/52; C10M133/54; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C10M2203/00; C10M2203/10; C10M2203/108; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10N; C10N2010/00; C10N2010/04; F; F02; F02B; F02B1/00; F02B1/02; F02B1/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
27 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A MINERAL LUBRICATING OIL AND A DISPERSANT AMOUNT OF AN OIL-SOLUBLE ASHLESS POLYBUTENYL-ALKYLENE POLYAMINE-ALKANOL HAVING THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
27 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A MINERAL LUBRICATING OIL AND A DISPERSANT AMOUNT OF AN OIL-SOLUBLE ASHLESS POLYBUTENYL-ALKYLENE POLYAMINE-ALKANOL HAVING THE STRUCTURAL FORMULA:
Claim 3
Dependent Claim
25 words
A lubricating oil composition according to claim 1 in which the polybutenyl radical in said dispersant has a molecular weight ranging from 1000 to 5000.
Claim 4
Dependent Claim
25 words
A lubricating oil composition according to claim 1 in which the polybutenyl radical in said dispersant has a molecular weight ranging from 1200 to 2500.
Claim 5
Dependent Claim
17 words
A lubricating oil compsoition according to claim 1 in which said dispersant is represented by the formula:
Claim 6
Dependent Claim
17 words
A lubricating oil composition according to claim 1 in which said dispersant is represented by the formula:
Claim 7
Dependent Claim
17 words
A lubricating oil composition according to claim 1 in which said dispersant is represented by the formula:
Claim 8
Dependent Claim
17 words
A lubricating oil composition according to claim 1 in which said dispersant is represented by the formula:
References Cited (Backward Citations)
US3197510A
Cited
US3527804A
Cited
US3711406A
Cited
US3794586A
Cited
US3755433A
Cited
US3784474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |