US2790776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-resistant gels and their manufacture
Assignee: Shell Development Co
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Filing: 1952-08-26
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Granted: 1957-04-30
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Expires: 1972-08-26
Abstract
No abstract record available.
Inventors
- 👤 William E Savage
- 👤 Walter H Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:07
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/02; C10M2201/10; C10M2201/105; C10M2201/14; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2205/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/102; C10M2209/103; C10M2209/105; C10M2209/107; C10M2209/108; C10M2209/109; C10M2211/00; C10M2211/02; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/044; C10M2215/24; C10M2215/26; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/06; C10M2223/061; C10M2223/065; C10M2227/00; C10M2227/04; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
89 words
A PROCESS FOR THE PREPARATION OF A GREASE COMPOSITION WHICH COMPRISES MIXING A HYDROGEL OF AN AMORPHOUS INORGANIC COLLOID WITH FROM ABOUT 10% TO ABOUT 100% BY WEIGHT, BASED ON THE COLLOID, OF A HYDROPHOBIC SURFACE-ACTIVE AGENT AND FROM ABOUT 50% TO ABOUT 150% BASED ON THE WEIGHT OF COLLOID OF A LUBRICATING OIL, SPRAY DRYING THE MIXTURE SO FORMED TO PRODUCE A PULVERULENT MATERIAL AND DISPERSING IT IN A LUBREICATING OIL TO FROM A GREASE COMPOSITION CONTAINING FROM ABOUT 1% TO ABOUT 20% BY WEIGHT OF THE COLLOID.
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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) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |