US3746645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyether series synthetic lubricating oil compositions
Assignee: NOF Corp
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Filing: 1971-11-26
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Granted: 1973-07-17
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Expires: 1991-11-26
Abstract
Abstract LUBRICANTING OIL COMPOSITION FOR AN ENGINE OIL IS OBTAINED BY ADDING A POLYOXYALKYLENE GLYCOL ETHER N-AMINE SUBSTITUTED SUCCINIMIDE TO A POLYOXYALKYLENE GLYCOL ETHER.
Inventors
- 👤 M Saito
- 👤 K Minagawa
- 👤 Y Tanizaki
- 👤 K Furuta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:52
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D207/408; C07C; C07C59/00; C07C59/40; C07C59/58; C10; C10M; C10M133/00; C10M133/02; C10M133/16; C10M133/52; C10M133/56; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/106; C10M2209/107; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/086; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10N; C10N2020/00; C10N2020/01
Claims Analysis
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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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |