US3927104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polybutenyl-alkylene polyamine-polyalkanol lubricant additive
Assignee: Texaco Inc
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Filing: 1974-12-18
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Granted: 1975-12-16
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Expires: 1994-12-18
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
2026-10-30 07:41
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: 9
Claim 1
Independent Claim
10 words
AN OIL-SOLUBLE ASHLESS POLYBUTENYL-ALKYLENE POLAMINEPOLYALKANOL DISPERANT REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
10 words
AN OIL-SOLUBLE ASHLESS POLYBUTENYL-ALKYLENE POLAMINEPOLYALKANOL DISPERANT REPRESENTED BY THE FORMULA:
Claim 3
Dependent Claim
20 words
A dispersant according to claim 1 in which said polybutenyl radical has a molecular weight ranging from 1,000 to 5,000.
Claim 4
Dependent Claim
21 words
A dispersant according to claim 1 in which said polybutenyl radical has a molecular weight ranging from about 1,200 to 2,500.
Claim 5
Dependent Claim
17 words
A dispersant according to claim 1 in which x and y each have a value of 1.
Claim 6
Dependent Claim
10 words
A dispersant according to claim 1 represented by the formula:
Claim 7
Dependent Claim
10 words
A dispersant according to claim 1 represented by the formula:
Claim 8
Dependent Claim
10 words
A dispersant according to claim 1 represented by the formula:
Claim 9
Dependent Claim
10 words
A dispersant according to claim 1 represented by the formula:
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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |