Patent US3185647A successfully refreshed from Google Patents.
US3185647A
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US
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Lubricant composition
Assignee: California Research LLC
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Filing: 1962-09-28
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Granted: 1965-05-25
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Expires: 1982-09-28
Abstract
No abstract record available.
Inventors
- 👤 Robert G Anderson
- 👤 Yngve G Hendrickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:55
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/22; C07F9/04; C10; C10M; C10M133/00; C10M133/52; C10M133/56; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/06; 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; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2223/12; 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
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF A LUBRICATING OIL HAVING INCORPORATED THEREIN FROM 0.1% TO 40% OF A PRODUCT OBTAINED BY (1) REACTING AN N-ALKYL ALKENYL SUCCINIMIDE HAVING FROM 30 TO 200 CARBON ATOMS IN SAID ALKENYL GROUP AND FROM 1 TO 20 CARBON ATOMS IN SAID ALKYL RADICAL WITH PHOSPHORUS PENTASULFIDE AT TEMPERATURES FROM 70*F. TO 400*F. WHEREIN THE PHOSPHORUS PENTASULFIDE-SUCCINIMIDE MOL RATIO IS FROM 5:1 TO 1:20 FOLLOWED BY (2) REACTING THE PRODUCT OF (1) WITH A POLYALKYLENE POLYAMIDE AT TEMPERATURES FROM 250*F. TO 450*F. WHEREIN THE MOL RATIO OF POLYAMINE TO SUCCINIMIDE IS FROM 0.5:1 TO 1:1, SAID POLYALKYLENE POLYAMINE BEING OF THE FORMULA
Claim 2
Dependent Claim
110 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF A LUBRICATING OIL HAVING INCORPORATED THEREIN FROM 0.1% TO 40% OF A PRODUCT OBTAINED BY (1) REACTING AN N-ALKYL ALKENYL SUCCINIMIDE HAVING FROM 30 TO 200 CARBON ATOMS IN SAID ALKENYL GROUP AND FROM 1 TO 20 CARBON ATOMS IN SAID ALKYL RADICAL WITH PHOSPHORUS PENTASULFIDE AT TEMPERATURES FROM 70*F. TO 400*F. WHEREIN THE PHOSPHORUS PENTASULFIDE-SUCCINIMIDE MOL RATIO IS FROM 5:1 TO 1:20 FOLLOWED BY (2) REACTING THE PRODUCT OF (1) WITH A POLYALKYLENE POLYAMIDE AT TEMPERATURES FROM 250*F. TO 450*F. WHEREIN THE MOL RATIO OF POLYAMINE TO SUCCINIMIDE IS FROM 0.5:1 TO 1:1, SAID POLYALKYLENE POLYAMINE BEING 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) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |