Patent US3018250A successfully refreshed from Google Patents.
US3018250A
Expired / Lapsed
US
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Lubricating oil compositions containing nu-dialkylaminoalkyl alkenyl succinimides
Assignee: California Research LLC
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Filing: 1959-08-24
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Granted: 1962-01-23
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Expires: 1979-08-24
Abstract
No abstract record available.
Inventors
- 👤 Robert G Anderson
- 👤 Frank A Stuart
- 👤 Alan Y Drummond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:42
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D207/408; C07D207/412; C07C; C07C51/00; C07C51/54; C07C51/567; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C10; C10M; C10M1/00; C10M1/08; C10M133/00; C10M133/52; C10M133/56; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/06; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2207/00; C10M2207/04; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/108; C10M2209/109; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/086; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/02; C10M2217/04; C10M2217/046; C10M2217/06; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2223/047; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/043; C10M2229/044; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10N; C10N2010/00; C10N2010/04; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF AN OIL OF LUBRICATING VISCOSITY, AND, IN AN AMOUNT TO IMPART DETERGENCY THERETO, AN N-DIALKYLAMINOALKYL MONOALKENYL SUCCINIMIDE, WHEREIN SAID ALKENYL RADICAL CONTAINS FROM 30 TO ABOUT 200 CARBON ATOMS, AND SAID DIALKYLAMINOALKYL RADICAL CONTAINS NO MORE THAN 10 CARBON ATOMS.
Claim 2
Dependent Claim
49 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF AN OIL OF LUBRICATING VISCOSITY, AND, IN AN AMOUNT TO IMPART DETERGENCY THERETO, AN N-DIALKYLAMINOALKYL MONOALKENYL SUCCINIMIDE, WHEREIN SAID ALKENYL RADICAL CONTAINS FROM 30 TO ABOUT 200 CARBON ATOMS, AND SAID DIALKYLAMINOALKYL RADICAL CONTAINS NO MORE THAN 10 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) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |