Patent US3313730A successfully refreshed from Google Patents.
US3313730A
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Oleophilic clay powder
Assignee: Shell USA Inc
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Filing: 1964-03-30
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Granted: 1967-04-11
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Expires: 1984-03-30
Abstract
No abstract record available.
Inventors
- 👤 Gernard P Caruso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:02
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1305; C10; C10M; C10M103/00; C10M125/00; C10M125/26; C10M125/30; C10M2201/00; C10M2201/02; C10M2201/08; C10M2201/082; C10M2201/083; C10M2201/10; C10M2201/102; C10M2201/103; C10M2201/14; C10M2207/00; C10M2207/04; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/08; C10M2215/082; C10M2215/22; C10M2215/223; C10M2215/224; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10N; C10N2050/00; C10N2050/10; C10N2070/00; Y; Y10; Y10S; Y10S507/00; Y10S507/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A PULVERULENT SPRAY-DRIED OIL-DISPERSIBLE CLAY PRODUCT PASSING A 250-MESH SCREEN COMPRISING A HIGH BASE EXCHANGE CLAY WHCIH HAS BEEN ACIDIFIED WITH A MINERAL ACID BEARING ON THE SURFACES THREROF 40-125% BY WEIGHT, BASED ON THE CLAY, OF AN OLEOPHILIC NITROGEN COMPOUND SELECTED FROM THE GROUP CONSISTIN GOF IMIDAZOLINES SUBSTITUTED WITH FROM 1 TO 2 RADICALS SELECTED FROM THE GROUP CONSISTING OF HYDROCARBYL, ALKYLOL AND AMINO RADICALS, AMINO AMIDES FORMED BETWEEN FATTY ACIDS AND MIXTURES OF POLYETHYLENE AMINES, AND MIXTURES THEREOF, SAID PULVERULENT PRODUCT HAVING DISPERSED THERETHROUGH 0.1-5.0% BY WEIGHT OF WATER.
Claim 2
Dependent Claim
91 words
A PULVERULENT SPRAY-DRIED OIL-DISPERSIBLE CLAY PRODUCT PASSING A 250-MESH SCREEN COMPRISING A HIGH BASE EXCHANGE CLAY WHCIH HAS BEEN ACIDIFIED WITH A MINERAL ACID BEARING ON THE SURFACES THREROF 40-125% BY WEIGHT, BASED ON THE CLAY, OF AN OLEOPHILIC NITROGEN COMPOUND SELECTED FROM THE GROUP CONSISTIN GOF IMIDAZOLINES SUBSTITUTED WITH FROM 1 TO 2 RADICALS SELECTED FROM THE GROUP CONSISTING OF HYDROCARBYL, ALKYLOL AND AMINO RADICALS, AMINO AMIDES FORMED BETWEEN FATTY ACIDS AND MIXTURES OF POLYETHYLENE AMINES, AND MIXTURES THEREOF, SAID PULVERULENT PRODUCT HAVING DISPERSED THERETHROUGH 0.1-5.0% BY WEIGHT OF WATER.
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) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |