Patent JPS531825A successfully refreshed from Google Patents.
Patent FR1194993A successfully refreshed from Google Patents.
Patent US3844956A successfully refreshed from Google Patents.
US3844956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricants containing amino and hydroxy-substituted polyphenylthioethers
Assignee: Mobil Oil AS
•
Filing: 1973-01-26
•
Granted: 1974-10-29
•
Expires: 1993-01-26
Abstract
Abstract Lubricants are stabilized against oxidation and have their EP and detergency properties improved by adding thereto a property improving amount of an amino-substituted polyphenylthioether.
Inventors
- 👤 J Nnadi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:08
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/109; C10M2221/00; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
28 words
A LUBRICATING OIL OR GRASE COMPOSITION COMPRISING A MAJOR PROPORTION OF SAID LUBRICATING OIL OR GRASES AND AN ANTIOXIDANT OR DISPERSANT AMOUNT OF A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
28 words
A LUBRICATING OIL OR GRASE COMPOSITION COMPRISING A MAJOR PROPORTION OF SAID LUBRICATING OIL OR GRASES AND AN ANTIOXIDANT OR DISPERSANT AMOUNT OF A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
23 words
The composition of claim 1 wherein the compound is present in the range of from about 0.001 to about 20 percent by weight.
Claim 4
Dependent Claim
12 words
The composition of claim 1 wherein the lubricant is a lubricating oil.
Claim 5
Dependent Claim
11 words
The composition of claim 1 wherein the lubricant comprises a grease.
Claim 6
Dependent Claim
14 words
The composition of claim 3 wherein the lubricating oil is a mineral lubricating oil.
Claim 7
Dependent Claim
14 words
The composition of claim 3 wherein the lubricating oil is a synthetic lubricating oil.
Claim 8
Dependent Claim
30 words
The composition of claim 6 wherein the synthetic lubricating oil is an ester of an aliphatic monocarboxylic acid of from 4 to 10 carbon atoms, and mixtures thereof, and pentaerythritol.
Claim 9
Dependent Claim
16 words
The composition of claim 7 wherein the acid is a mixture of pelargonic and valeric acids.
Claim 10
Dependent Claim
18 words
The composition of claim 1 wherein R and R'' are dodecyl, X is NH2 and n is 2.
Claim 11
Dependent Claim
18 words
The composition of claim 1 wherein R and R'' are dodecyl, X is NH2 and n is zero.
Claim 12
Dependent Claim
22 words
The composition of claim 1 wherein R is dodecyl, R'' is nonyl, X is NH2, Y is OH and n is 2.
Claim 13
Dependent Claim
34 words
The composition of claim 1 wherein the hydrocarbyl is alkyl having from 1 to 100 carbon atoms, aryl having from 6 to 100 carbon atoms and aralkyl having from 7 to 100 carbon atoms.
Claim 14
Dependent Claim
15 words
The composition of claim 12 wherein the alkyl contains from 4 to 20 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) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |