US3794586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil composition
Assignee: Eneos Corp
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Filing: 1972-03-13
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Granted: 1974-02-26
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Expires: 1992-03-13
Abstract
Abstract A LUBRICATING OIL COMPOSITION WHICH IS CHARACTERIZED BY CONTAINING HYDROXYALKYL-SUBSTITUTED POLYAMINE PREPARED BY REACTING A POLYOLEFIN EPOXIDE REPRESENTED BY THE GENERAL FORMULA R-OXIRANE WHERE R DESIGNATES A BRANCHED-CHAIN ALKYL GROUP HAVING AVERAGE MOLECULAR WEIGHT OF 140 TO 3000, WITH A POLYAMINE SELECTED FROM THE GROUP COMPRISING ALKYLENE-DIAMINE, CYCLOALKYLENE-DIAMINE, ARALKYL-DIAMINE, POLYALKYLENE-POLYAMINE AND AROMATIC DIAMINE AT A TEMPERATURE OF 15 TO 180*C. OF
Inventors
- 👤 S Kimura
- 👤 N Ishida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:55
CPC Classifications
C; C10; C10M; C10M133/00; C10M133/52; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/06; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/062; C10M2215/064; C10M2215/065; C10M2215/086; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/02; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/086; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |