Patent US2652364A successfully refreshed from Google Patents.
US2652364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-temperature grease compositions
Assignee: Shell Development Co
•
Filing: 1951-12-29
•
Granted: 1953-09-15
•
Expires: 1971-12-29
Abstract
No abstract record available.
Inventors
- 👤 Harold A Woods
- 👤 Loren C Bollinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:25
CPC Classifications
C; C10; C10M; C10M7/00; C10M5/00; C10M2203/00; C10M2203/10; C10M2203/104; C10M2203/106; C10M2203/108; C10M2205/00; C10M2205/18; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/125; C10M2207/129; C10M2207/14; C10M2207/141; C10M2207/142; C10M2207/144; C10M2207/146; C10M2207/16; C10M2207/24; C10M2207/28; C10M2207/282; C10M2207/34; C10M2211/00; C10M2211/04; C10M2211/044; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/067; C10M2215/10; C10M2215/24; C10M2215/26; C10M2219/00; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/06; C10M2223/061; C10M2223/065; C10M2223/12; C10M2225/00; C10M2225/04; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/043; C10M2229/044; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2020/00; C10N2020/01; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A LUBRICATING GREASE COMPOSITION COMPRISING AS THE LUBRICATING BASE THEREOF A MIXTURE OF FROM 55% TO ABOUT 95% BY WEIGHT OF A SYNTHETIC HIGH BOILING LIQUID POLYHYDROCARBYLSILOXANE HAVING A VISCOSITY WITHIN THE LUBRICATING OIL VISCOSITY RANGE AND FROM ABOUT 5% TO ABOUT 45% BY WEIGHT OF A MINERAL OIL HAVING A VISCOSITY OF BETWEEN ABOUT 1250 AND ABOUT 11,000 SUS AT 100* F., SAID MINERAL OIL CONTAINING LESS THAN ABOUT 15% BY WEIGHT OF AROMATIC HYDROCARBONS, THE LUBRICATING BASE BEING THICKENED TO A GREASE CONSISTENCY BY A SODIUM SOAP OF A CARBOXYLIC ACID HAVING AT LEAST 20 CARBON ATOMS PER MOLECULE, SAID GREASE CONTAINING A MINOR PROPORTION OF AN ALKALI METAL SALT OF AN ORGANIC CARBOXYLIC ACID CONTAINING AN AROMATIC RING.
Claim 2
Dependent Claim
121 words
A LUBRICATING GREASE COMPOSITION COMPRISING AS THE LUBRICATING BASE THEREOF A MIXTURE OF FROM 55% TO ABOUT 95% BY WEIGHT OF A SYNTHETIC HIGH BOILING LIQUID POLYHYDROCARBYLSILOXANE HAVING A VISCOSITY WITHIN THE LUBRICATING OIL VISCOSITY RANGE AND FROM ABOUT 5% TO ABOUT 45% BY WEIGHT OF A MINERAL OIL HAVING A VISCOSITY OF BETWEEN ABOUT 1250 AND ABOUT 11,000 SUS AT 100* F., SAID MINERAL OIL CONTAINING LESS THAN ABOUT 15% BY WEIGHT OF AROMATIC HYDROCARBONS, THE LUBRICATING BASE BEING THICKENED TO A GREASE CONSISTENCY BY A SODIUM SOAP OF A CARBOXYLIC ACID HAVING AT LEAST 20 CARBON ATOMS PER MOLECULE, SAID GREASE CONTAINING A MINOR PROPORTION OF AN ALKALI METAL SALT OF AN ORGANIC CARBOXYLIC ACID CONTAINING AN AROMATIC RING.
References Cited (Backward Citations)
US2182137A
Cited
US2407037A
Cited
US2446177A
Cited
US2450221A
Cited
US2456642A
Cited
US2508741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |