Patent US3663436A successfully refreshed from Google Patents.
US3663436A
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Lubricating greases
Assignee: Shell USA Inc
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Filing: 1968-06-27
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Granted: 1972-05-16
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Expires: 1988-06-27
Abstract
Abstract COPPER CORROSION RESITANT GREASE ARE OBTAINED BY INCORPORATING THEREIN A MINOR AMOUNT OF A 3-AMINO-1,2,4TRIAZOLE.
Inventors
- 👤 William D Carswell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:16
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/02; C10M2201/06; C10M2201/065; C10M2201/08; C10M2201/082; C10M2201/083; C10M2201/14; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/16; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10N; C10N2010/00; C10N2010/02; C10N2010/08; C10N2050/00; C10N2050/015; C10N2050/02; C10N2050/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |