US3833496A
Expired / Lapsed
US
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Oil composition
Assignee: Ethyl Corp
•
Filing: 1973-04-06
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Granted: 1974-09-03
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Expires: 1993-04-06
Abstract
Abstract WHEREIN R'' is selected from the group consisting of aliphatic hydrocarbon radicals containing about 8-100 carbon atoms, and hydrocarbylaminohydrocarbyl radicals having the formula: Compounds having the formula:
Inventors
- 👤 R Malec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:10
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2205/00; C10M2205/02; C10M2205/026; C10M2205/028; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/062; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/085; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2223/06; C10M2223/065; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/14; C10N2010/16; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
19 words
A lubricating oil composition as defined in claim 1 containing an antiwear-antirust additive wherein said additive has the formula:
Claim 2
Dependent Claim
28 words
A lubricating oil composition of claim 2 wherein R1 contains about 8-22 carbon atoms, R2 is the trimethylene radical, R3 is the methyl radical, and R4 is hydrogen.
Claim 3
Dependent Claim
13 words
A lubricating oil composition of claim 3 wherein R1 is the oleyl radical.
Claim 4
Dependent Claim
13 words
A lubricating oil composition of claim 3 wherein R1 is the stearyl radical.
Claim 5
Dependent Claim
13 words
A lubricating oil composition of claim 3 wherein R1 is the palmyl radical.
References Cited (Backward Citations)
US2756249A
Cited
US2897152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |