US3623985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polysuccinimide ashless detergents as lubricating oil additives
Assignee: Chevron USA Inc
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Filing: 1967-03-29
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Granted: 1971-11-30
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Expires: 1987-03-29
Abstract
Abstract Compositions having three alkenyl succinimides bonded through an amine nitrogen to a central nucleus such as a triazine or phosphorous acid derivative. The compositions find use as detergents and dispersants in lubricating oils.
Inventors
- 👤 Yngve G Hendrickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:25
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D207/408; C07D207/412; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/553; C07F9/5537; C10; C10M; C10M133/00; C10M133/52; C10M133/58; C10M2203/00; C10M2203/06; C10M2205/00; C10M2205/02; C10M2209/00; C10M2209/10; C10M2209/103; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/22; C10M2215/221; C10M2215/222; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2223/047; C10M2223/049; C10M2225/00; C10M2225/02; C10N; C10N2010/00; C10N2010/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
20 words
A composition according to claim 1, wherein said R is an alkenyl group of from 30 to 100 carbon atoms.
Claim 2
Dependent Claim
10 words
A composition according to claim 1, wherein x is 2.
Claim 3
Dependent Claim
19 words
A lubricating oil composition containing in an amount to provide detergency and dispersancy, a composition according to claim 1.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |