US2647872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease composition
Assignee: Shell Development Co
•
Filing: 1950-01-27
•
Granted: 1953-08-04
•
Expires: 1970-01-27
Abstract
No abstract record available.
Inventors
- 👤 Walter H Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:45
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/06; C10M2201/062; C10M2201/063; C10M2201/065; C10M2201/066; C10M2201/10; C10M2201/102; C10M2201/103; C10M2201/105; C10M2201/14; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/04; C10M2207/046; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/125; C10M2207/128; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/284; C10M2207/285; C10M2207/286; C10M2207/287; C10M2207/288; C10M2207/289; C10M2207/34; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/109; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/12; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10M2217/044; C10M2217/045; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/08; C10M2219/082; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
135 words
A GREASE COMPOSITION COMPRISING A LUBRICATING OIL, 1-20% BY WEIGHT OF AN ORIGINALLY HYDROPHILIC INORGANIC GELLING AGENT CAPABLE OF FORM-D ING A GREASE STRUCTURE IN SAID OIL, 0.5-10% BY WEIGHT OF A HYDROXY-CONTAINING HYDROPHOBIC SURFACE-ACTIVE COMPOUND OF THE GROUPS CONSISTING OF HYDROXY FATTY ACIDS, ALIPHATIC ALCOHOLS HAVING AT LEAST 8 CARBON ATOMS PER MOLECULE, ALIPHATIC ESTERS OF SAID ACIDS AND OF SAID ALCOHOLS WHEREIN EACH ESTER MOLECULE CONTAINS AT LEAST 1 HYDROXYL GROUP, AND MIXTURES OF THE SAME AND 0.5-10% BY WEIGHT OF A SUBSTANCE OF THE GROUP CONSISTING OF ALKYL AND ALKENYL ALIPHATIC DICARBOXYLIC ACIDS WHEREIN THE TWO CARBOXYL GROUPS ARE SEPARATED BY NOT MORE THAN 3 CARBON ATOMS, AND THE ANHYDRIDES, HALF-AMIDES AND ALIPHATIC ESTERS OF SAID ACIDS, SAID SUBSTANCES BEARING AT LEAST ONE HYDROCARBON GROUP HAVING FROM 5 TO 36 CARBON ATOMS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |