US3896050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil additives
Assignee: Texaco Inc
•
Filing: 1974-07-05
•
Granted: 1975-07-22
•
Expires: 1994-07-05
Abstract
Abstract Lubricating oils of superior copper corrosion inhibiting properties may be made using an additive of 3,5-bis(alkyldithio)4-substituted isothiazoles as additives.
Inventors
- 👤 James A White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:26
CPC Classifications
C; C07; C07D; C07D275/00; C07D275/02; C07D275/03; C10; C10M; C10M135/00; C10M135/32; C10M135/36; C10M2219/00; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10N; C10N2040/00; C10N2040/02; C10N2040/08; C10N2040/135
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
27 words
A LUBRICATING OIL COMPOSITION COMPRISING A BLEND OF A. A MAJOR AMOUNT OF A LUBRICATING OIL SUBSTRATE AND B. A MINOR CORROSION INHIBITING AMOUNT OF THE COMPOSITION
Claim 2
Dependent Claim
27 words
A LUBRICATING OIL COMPOSITION COMPRISING A BLEND OF A. A MAJOR AMOUNT OF A LUBRICATING OIL SUBSTRATE AND B. A MINOR CORROSION INHIBITING AMOUNT OF THE COMPOSITION
Claim 3
Dependent Claim
15 words
A lubricating oil composition of claim 1 wherein the lubricating oil is an automotive lubricant.
Claim 4
Dependent Claim
15 words
A lubricating oil composition of claim 1 wherein the lubricating oil is a gear oil.
Claim 5
Dependent Claim
15 words
A lubricating oil composition of claim 1 wherein the lubricating oil is a turbine oil.
Claim 6
Dependent Claim
24 words
A lubricating oil composition of claim 1 wherein the (b) component is present in an amount ranging from about 0.01 to 0.50 weight percent.
Claim 7
Dependent Claim
27 words
A lubricating oil composition comprising a blend of a. a major amount of a lubricating oil substrate and b. a minor corrosion inhibiting amount of the composition
Claim 8
Dependent Claim
27 words
A lubricating oil composition comprising a blend of a. a major amount of a lubricating oil substrate and b. a minor corrosion inhibiting amount of the composition
Claim 9
Dependent Claim
15 words
A lubricating oil composition of claim 6 wherein the lubricating oil is an automotive lubricant.
Claim 10
Dependent Claim
15 words
A lubricant oil composition of claim 6 wherein the lubricating oil is a gear oil.
Claim 11
Dependent Claim
15 words
A lubricating oil composition of claim 6 wherein the lubricating oil is a turbine oil.
Claim 12
Dependent Claim
24 words
A lubricating oil composition of claim 6 wherein the (b) component is present in an amount ranging from about 0.01 to 0.05 weight percent.
Claim 13
Dependent Claim
27 words
A lubricating oil composition comprising a blend of a. a major amount of a lubricating oil substrate and b. a minor corrosion inhibiting amount of the composition
Claim 14
Dependent Claim
27 words
A lubricating oil composition comprising a blend of a. a major amount of a lubricating oil substrate and b. a minor corrosion inhibiting amount of the composition
Claim 15
Dependent Claim
15 words
A lubricating oil composition of claim 11 wherein the lubricating oil is an automotive lubricant.
Claim 16
Dependent Claim
15 words
A lubricating oil composition of claim 11 wherein the lubricating oil is a gear oil.
Claim 17
Dependent Claim
15 words
A lubricating oil composition of claim 11 wherein the lubricating oil is a turbine oil.
Claim 18
Dependent Claim
24 words
A lubricating oil composition of claim 11 wherein the (b) component is present in an amount ranging from about 0.01 to 0.50 weight percent.
References Cited (Backward Citations)
US2154096A
Cited
US3801575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |