US3271309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease compositions
Assignee: Shell USA Inc
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Filing: 1964-07-17
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Granted: 1966-09-06
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Expires: 1984-07-17
Abstract
No abstract record available.
Inventors
- 👤 Gerard P Caruso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:39
CPC Classifications
C; C10; C10M; C10M169/00; C10M169/06; C10M2201/00; C10M2201/02; C10M2201/06; C10M2201/062; C10M2201/065; C10M2201/066; C10M2201/08; C10M2201/082; C10M2201/083; C10M2201/10; C10M2201/102; C10M2201/103; C10M2201/14; C10M2203/00; C10M2203/10; C10M2207/00; C10M2207/10; C10M2207/16; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/04; C10M2211/044; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/08; C10M2215/082; C10M2215/22; C10M2215/221; C10M2215/223; C10M2215/224; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/06; C10M2223/061; C10M2223/08; C10M2223/12; C10M2225/00; C10M2225/02; C10M2225/04; C10M2227/00; C10M2227/02; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/08; C10N2040/00; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
111 words
A GREASE COMPOSITION CONSISTING ESSENTIALLY OF A LUBRICATING BASE OIL GELLED TO GREASE CONSISTENCY BY MEANS OF AN OLEOPHILLIC CLAY PRODUCT, WHICH HAS BEEN RENDERED OLEOPHILIC BY TREATMENT OF A CLAY HAVING A BASE EXCHANGE CAPACITY OF 25-100 MILLIEQUIVALENTS PER 100 GRAMS WITH AN ORGANIC AMMONIUM BASE, MINOR PROPORTIONS EACH OF AN ESSENTIALLY WATER-INSOLUBLE METAL CARBONATE HAVING A MOHS HARDNESS OF 1-5 AND A THERMAL DECOMPOSITION OF NO LESS THAN 250*C. AND A SULFIDE OF THE GROUP CONSISTING OF MOLYBDENUM SULFIDE, AMORPHOUS ANTIMONY SULFIDES AND MIXTURES THEREOF, THE COMBINED CARBONATE AND SULFIDE BEING SUFFICIENT TO IMPROVE SUBSTANTIALLY THE EXTREMEPRESSURE PROPERTIES OF THE GREASE, AND 0.1-0.75% BY WEIGHT OF A LEAD NAPHTHENATE.
References Cited (Backward Citations)
US2831809A
Cited
US2875152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |