US3957664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant and hydraulic fluid compositions
Assignee: Chevron USA Inc
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Filing: 1974-12-12
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Granted: 1976-05-18
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Expires: 1994-12-12
Abstract
Abstract A novel composition of an internal olefin or mixture of internal olefins having the formula R-(CH2)2-C(R)=CH-C(R) (CH3)-(CH2)2-R, where each R group is an alkyl group having from four to 12 carbon atoms and a minor amount of a lubricating oil anti-oxidant. A composition of 11,13-dioctyl-13-methyl-11-tricosene and two percent 2,6-di-t-butyl-p-cresol is useful as a high temperature lubricant.
Inventors
- 👤 William J. Heilman
- 👤 Thomas J. Lynch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:38
CPC Classifications
C; C10; C10M; C10M3/00; C07; C07C; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1213; C07C2531/00; C07C2531/02; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2205/00; C10M2205/02; C10M2205/028; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/025; C10M2207/026; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/067; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2219/00; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2010/00; C10N2010/04; C10N2020/00; C10N2020/01; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/08; C10N2040/12; C10N2040/13; C10N2040/135; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
77 words
In a composition of matter comprising a major proportion of an oil of lubricating viscosity and a minor portion of conventional lubricating oil and hydraulic fluid additive in an amount sufficient to effect each additive attendant function including at least one lubricating oil antioxidant; the improvement comprising using as the base oil a composition of the formula ##EQU3## wherein each R group is a saturated alkyl group independently having from about 4 to about 12 carbon atoms.
Claim 2
Dependent Claim
77 words
In a composition of matter comprising a major proportion of an oil of lubricating viscosity and a minor portion of conventional lubricating oil and hydraulic fluid additive in an amount sufficient to effect each additive attendant function including at least one lubricating oil antioxidant; the improvement comprising using as the base oil a composition of the formula ##EQU3## wherein each R group is a saturated alkyl group independently having from about 4 to about 12 carbon atoms.
Claim 3
Dependent Claim
27 words
The composition of matter in accordance with claim 1 in which each R group is a saturated normal alkyl group independently having 6 or 8 carbon atoms.
Claim 4
Dependent Claim
24 words
The composition of matter in accordance with claim 1 in which each R group is a saturated normal alkyl group having 8 carbon atoms.
Claim 5
Dependent Claim
24 words
The composition of matter in accordance with claim 1 in which each R group is a saturated normal alkyl group having 6 carbon atoms.
Claim 6
Dependent Claim
28 words
The composition of matter in accordance with claim 1 in which the additive component includes at least one member selected from anti-wear agents, dispersing agents and anti-foaming agents.
Claim 7
Dependent Claim
18 words
The composition of matter in accordance with claim 1 in which the additive component includes an anti-wear agent.
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) | 1979-05-18 | 1979-11-17 | 1980-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-18 | 1983-11-17 | 1984-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-18 | 1987-11-17 | 1988-05-18 | $7700.00 | Window Closed / Lapsed |