US2820008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating grease composition
Assignee: Shell Development Co
•
Filing: 1955-04-22
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Granted: 1958-01-14
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Expires: 1975-04-22
Abstract
No abstract record available.
Inventors
- 👤 Harold A Woods
- 👤 Harvey M Trowbridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:02
CPC Classifications
C; C10; C10M; C10M5/00; C10M7/00; C10M2201/00; C10M2201/06; C10M2201/063; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/106; C10M2209/107; C10M2209/109; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/10; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2227/00; C10M2227/02; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/14; C10N2010/16; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/02; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A GREASE COMPOSITION COMPRISING A MINERAL LUBRICATING OIL THICKENED TO A GREASE CONSISTENCY WITH AN ALKALI METAL SOAP OF A HYDROXY FATTY ACID HAVING FROM 12 TO 24 CARBON ATOMS PER MOLECULE AND BETWEEN ABOUT 0.25% AND ABOUT 5% BY WEIGHT EACH OF AN OIL-SOLUBLE ALKALINE EARTH METAL BASIC SULFONATE AND A MONO(UNSATURATED FATTY ACID) ESTER OF A POLYALKYLENE GLYCOL SAID GLYCOL HAVING 5-20 ALKYLENE RADICALS, SAID FATTY ACID HAVING FROM ABOUT 12 TO ABOUT 24 CARBON ATOMS PER MOLECULE.
Claim 2
Dependent Claim
80 words
A GREASE COMPOSITION COMPRISING A MINERAL LUBRICATING OIL THICKENED TO A GREASE CONSISTENCY WITH AN ALKALI METAL SOAP OF A HYDROXY FATTY ACID HAVING FROM 12 TO 24 CARBON ATOMS PER MOLECULE AND BETWEEN ABOUT 0.25% AND ABOUT 5% BY WEIGHT EACH OF AN OIL-SOLUBLE ALKALINE EARTH METAL BASIC SULFONATE AND A MONO(UNSATURATED FATTY ACID) ESTER OF A POLYALKYLENE GLYCOL SAID GLYCOL HAVING 5-20 ALKYLENE RADICALS, SAID FATTY ACID HAVING FROM ABOUT 12 TO ABOUT 24 CARBON ATOMS PER MOLECULE.
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) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |