Patent US2306565A successfully refreshed from Google Patents.
Patent US1554612A successfully refreshed from Google Patents.
Patent US3843062A successfully refreshed from Google Patents.
Patent US4636585A successfully refreshed from Google Patents.
Patent US3766070A successfully refreshed from Google Patents.
US3766070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diurethane diurea thickened grease compositions
Assignee: Shell USA Inc
•
Filing: 1970-10-01
•
Granted: 1973-10-16
•
Expires: 1990-10-01
Abstract
Abstract GREASE COMPOSITIONS COMPRISING AN OLEAGINOUS BASE VEHICLE HAVING INCORPORATED THEREIN A MINOR ABOUT OF A DIURETHANE-DIUREA THICKENING AGENT HAVE EXCELLENT HIGH TEMPERATURE DYNAMIC LUBRICATING PROPERTIES. THE DIURETHANE-DIUREA THICKENERS ARE PRODUCED FROM MONOHYDRIC ALCOHOLS, DIIDSOCYANATES AND DIAMINES.
Inventors
- 👤 T Wulfers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:52
CPC Classifications
C; C10; C10M; C10M115/00; C10M115/08; C10M2201/00; C10M2201/08; C10M2201/082; C10M2201/083; C10M2205/00; C10M2205/02; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/289; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/08; C10M2215/082; C10M2215/10; C10M2215/102; C10M2215/22; C10M2215/221; C10M2215/223; C10M2215/224; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/10; C10M2219/104; C10M2219/108; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10M2290/00; C10M2290/10; C10N; C10N2050/00; C10N2050/10; C10N2070/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |