Patent US2626899A successfully refreshed from Google Patents.
US2626899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease compositions
Assignee: Shell Development Co
•
Filing: 1950-06-26
•
Granted: 1953-01-27
•
Expires: 1970-06-26
Abstract
No abstract record available.
Inventors
- 👤 Stanley T Abrams
- 👤 Fred H Stross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:07
CPC Classifications
C; C10; C10M; C10M7/00; C10M5/00; C10M2201/00; C10M2201/06; C10M2201/062; C10M2201/063; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/084; C10M2201/085; C10M2201/10; C10M2201/102; C10M2201/14; C10M2203/00; C10M2203/10; C10M2205/00; C10M2205/02; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/107; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/14; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2221/00; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/043; C10M2223/06; C10M2223/061; C10M2223/065; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/10; C10N2070/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
A GREASE COMPOSITION COMPRISING A MAJOR AMOUNT OF LUBRICATING OIL, A CATION EXCHANGE INORGANIC COLLOID DISPERSED THEREIN, SAID COLLOID BEARING AT LEAST 30% BY WEIGHT THEREOF OF HYDROPHOBIC CATIONIC SURFACE-ACTIVE RADICALS, AT LEAST 50% OF SAID RADICALS BEING IN SALT FORMATION WITH AN ACID, SAID HAVING AN ACID GROUP CONTAINING AN ELEMENT HAVING AN ATOMIC WEIGHT BETWEEN 28.0 AND 32.1.
References Cited (Backward Citations)
US2531440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-27 | 1956-07-28 | 1957-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-27 | 1960-07-28 | 1961-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-27 | 1964-07-28 | 1965-01-27 | $7700.00 | Window Closed / Lapsed |