US3131150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil compositions containing n-substituted alkenyl succinimides in combination with polyamines
Assignee: California Research LLC
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Filing: 1961-04-12
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Granted: 1964-04-28
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Expires: 1981-04-12
Abstract
No abstract record available.
Inventors
- 👤 Frank A Stuart
- 👤 Robert G Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:03
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D207/408; C07D207/412; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C10; C10M; C10M133/00; C10M133/52; C10M133/56; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/06; C10M2203/10; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2207/00; C10M2207/04; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2209/108; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/068; C10M2215/086; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/043; C10M2229/044; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10M2229/05; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF AN OIL OF LUBRICATING VISCOSITY, FROM 0.1% TO 45% BY WEIGHT OF AN N-POLYAMINE KSUBSTITUTED ALKANYL SUCCINIMIDE PREPARED BY REACTING AN ALKENYL SUCCINIC ANHYDRIDE WITH ABOUT AN EQUAL MOLAR PROPORTION OF A POLYAMINE SELECTED FROM THE GROUP CONSISTING OF TETRAETHYLENE PENTAMINE AND DIMETHYLAMINOPROPYLAMINE AT TEMPERATURES FROM 220*F. TO 500*F. WHEREIN SAID ALKENYL RADICAL CONTIANS FROM 30 TO ABOUT 200 CARBON ATOMS, AND FROM 0.01% TO 2% BY WEIGHT OF AN AMINE SELECTED FROM THE GROUP CONSISTING OF A POLYAMINE OF THE FORMULA:
Claim 2
Dependent Claim
91 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF AN OIL OF LUBRICATING VISCOSITY, FROM 0.1% TO 45% BY WEIGHT OF AN N-POLYAMINE KSUBSTITUTED ALKANYL SUCCINIMIDE PREPARED BY REACTING AN ALKENYL SUCCINIC ANHYDRIDE WITH ABOUT AN EQUAL MOLAR PROPORTION OF A POLYAMINE SELECTED FROM THE GROUP CONSISTING OF TETRAETHYLENE PENTAMINE AND DIMETHYLAMINOPROPYLAMINE AT TEMPERATURES FROM 220*F. TO 500*F. WHEREIN SAID ALKENYL RADICAL CONTIANS FROM 30 TO ABOUT 200 CARBON ATOMS, AND FROM 0.01% TO 2% BY WEIGHT OF AN AMINE SELECTED FROM THE GROUP CONSISTING OF A POLYAMINE OF THE FORMULA:
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |