Patent US4879713A successfully refreshed from Google Patents.
Patent US2831809A successfully refreshed from Google Patents.
US2831809A
Expired / Lapsed
US
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Onium clay grease containing surface active agent
Assignee: Shell Development Co
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Filing: 1952-11-25
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Granted: 1958-04-22
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Expires: 1972-11-25
Abstract
No abstract record available.
Inventors
- 👤 Walter H Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:43
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1305; C10; C10M; C10M5/00; C10M2201/00; C10M2201/06; C10M2201/063; C10M2201/08; C10M2201/082; C10M2201/083; C10M2201/14; C10M2207/00; C10M2207/04; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2209/107; C10M2211/00; C10M2211/02; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/044; C10M2215/06; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/044; C10M2217/045; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/042; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/06; C10M2223/065; C10M2227/00; C10M2227/02; C10M2227/06; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A GREASE COMPOSITION COMPRISING A MAJOR PROPORTION OF A MINERAL LUBRICATING OIL HAVING COLLOIDALLY DISPERSED THEREIN A GELLING PROPORTION OF AN ORGANOPHILIC BENTONITE ORIGINALLY EXHIBITING A BASE-EXCHANGE CAPACITY OF AT LEAST 60, IN WHICH THE EXCHANGEABLE INORGANIC CATION HAS BEEN EXCHANGED FOR A AMMOUNIUM BASE HAVING AT LEAST ONE ALIPHATIC RADICAL CONTAINING BETWEEN 14 AND 18 CARBON ATOMS IN A CHAIN, FROM ABOUT 0.5% TO ABOUT 20% BY WEIGHT, BASED ON THE ORGANOPHILIC BANTONITE OF AN OLEOPHILIC POLYAMINO OXY COPOUND CONTAINING AT LEAST THREE NITROGEN ATOMS AND OXY GROUPS TOGETHER SPACED APART IN THE MOLECULE BY NOT MORE THAN 10 CARBON ATOMS, FROM ABOUT 1% TO ABOUT 20% BY WEIGHT BASED ON THE ORGANOPHILIC BENTONITE, OF AN INORGANIC NITRITE AND FROM ABOUT 1% TO ABOUT 20% BY WEIGHT BASED ON THE ORGNOPHILIC BENTONITE, OF AN ALKALINE EARTH METAO HYDROXIDE.
Claim 2
Dependent Claim
139 words
A GREASE COMPOSITION COMPRISING A MAJOR PROPORTION OF A MINERAL LUBRICATING OIL HAVING COLLOIDALLY DISPERSED THEREIN A GELLING PROPORTION OF AN ORGANOPHILIC BENTONITE ORIGINALLY EXHIBITING A BASE-EXCHANGE CAPACITY OF AT LEAST 60, IN WHICH THE EXCHANGEABLE INORGANIC CATION HAS BEEN EXCHANGED FOR A AMMOUNIUM BASE HAVING AT LEAST ONE ALIPHATIC RADICAL CONTAINING BETWEEN 14 AND 18 CARBON ATOMS IN A CHAIN, FROM ABOUT 0.5% TO ABOUT 20% BY WEIGHT, BASED ON THE ORGANOPHILIC BANTONITE OF AN OLEOPHILIC POLYAMINO OXY COPOUND CONTAINING AT LEAST THREE NITROGEN ATOMS AND OXY GROUPS TOGETHER SPACED APART IN THE MOLECULE BY NOT MORE THAN 10 CARBON ATOMS, FROM ABOUT 1% TO ABOUT 20% BY WEIGHT BASED ON THE ORGANOPHILIC BENTONITE, OF AN INORGANIC NITRITE AND FROM ABOUT 1% TO ABOUT 20% BY WEIGHT BASED ON THE ORGNOPHILIC BENTONITE, OF AN ALKALINE EARTH METAO HYDROXIDE.
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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) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |