Patent US2986518A successfully refreshed from Google Patents.
US2986518A
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Assignee: Shell USA Inc
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Filing: 1959-05-19
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Granted: 1961-05-30
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Expires: 1979-05-19
Abstract
No abstract record available.
Inventors
- 👤 William D Carswell
- 👤 Willcock Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:20
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/06; C10M2201/062; C10M2201/065; C10M2201/10; C10M2201/102; C10M2201/105; C10M2201/14; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/16; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2209/107; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/044; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/12; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/08; C10M2219/082; C10M2223/00; C10M2223/06; C10M2223/061; C10M2227/00; C10M2227/04; C10M2227/08; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/043; C10M2229/044; C10N; C10N2010/00; C10N2010/10; C10N2030/00; C10N2030/32; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A PROCESS FOR THE PREPARATIONOF A LUBRICATING GREASE COMPOSITION WHICH COMPRISES ADDING AN ORGANOGEL OF AN INORGANIC COLLOID TO A LUBRICATING OIL, SAID ORGANOGEL COMPRISING A WATER-MISCIBLE ORGANIC SOLVENT VOLTAILIZING BELOW THE BOILING RANGE OF THE OIL AND 0.5-10 PERCENT BY WEIGHT OF GREASE-FORMING INORGANIC AMORPHOUS COLLOIDS, THE TEMPERATURE OF THE MIXTURE BEING AT LEAST 20*C. ABOVE THE BOILING POINT OF THE OIL-MISCIBLE SUBSTRATE OF THE ORGANOLE AND BELOW THE MINIMUM BOILING POINT OF THE LUBRICATING OIL, THE AMOUNT OF LIQUID SUBSTRATE PRESENT IN THE OIL AT ANY TIME NOT EXCEEDING 5% BY WEIGHT OF THE OIL, WHEREBY SUBSTANTIALLY INSTANTANEOUS VOLATILIZATION OF AT LEAST ABOUT 85% BY WEIGHT OF THE SUBSTRATE OCCURS AND A SUSPENSION OF THE COLLOID IN OIL IS FORMED, THE PROPORTON OF INORGANIC COLLOID IN THE GREASE BEING 3-10 PRECENT BY WEIGHT.
Claim 2
Dependent Claim
135 words
A PROCESS FOR THE PREPARATIONOF A LUBRICATING GREASE COMPOSITION WHICH COMPRISES ADDING AN ORGANOGEL OF AN INORGANIC COLLOID TO A LUBRICATING OIL, SAID ORGANOGEL COMPRISING A WATER-MISCIBLE ORGANIC SOLVENT VOLTAILIZING BELOW THE BOILING RANGE OF THE OIL AND 0.5-10 PERCENT BY WEIGHT OF GREASE-FORMING INORGANIC AMORPHOUS COLLOIDS, THE TEMPERATURE OF THE MIXTURE BEING AT LEAST 20*C. ABOVE THE BOILING POINT OF THE OIL-MISCIBLE SUBSTRATE OF THE ORGANOLE AND BELOW THE MINIMUM BOILING POINT OF THE LUBRICATING OIL, THE AMOUNT OF LIQUID SUBSTRATE PRESENT IN THE OIL AT ANY TIME NOT EXCEEDING 5% BY WEIGHT OF THE OIL, WHEREBY SUBSTANTIALLY INSTANTANEOUS VOLATILIZATION OF AT LEAST ABOUT 85% BY WEIGHT OF THE SUBSTRATE OCCURS AND A SUSPENSION OF THE COLLOID IN OIL IS FORMED, THE PROPORTON OF INORGANIC COLLOID IN THE GREASE BEING 3-10 PRECENT BY WEIGHT.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |