US2948678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beneficiated clay compositions and method of beneficiating clay
Assignee: Magnet Cove Barium Corp
•
Filing: 1957-08-05
•
Granted: 1960-08-09
•
Expires: 1977-08-05
Abstract
No abstract record available.
Inventors
- 👤 Turner Finis
- 👤 Edward T Dillon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:50
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1305; C09; C09K; C09K8/00; C09K8/02; C09K8/04; C09K8/14; C09K8/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A COMPOSITION IN THE PRODUCTION OF VISCOUS CLAY SLURRIES COMPRISING A CLAY SELECTED FROM SODIUM MONTMORILLONITE AND CALCIUM MONTMORILLONITE, FROM 0.1 TO 10 POUNDS PER TON OF CLAY OF A COPOLYMER SELECTED FROM THE GROUP CONSISTING OF ETHYLENE-MALEIC ANHYDRIDE COPOLYMER HAVING A SPECIFIC VISCOSITY OF AT LEAST 0.1 AND ISOBUTYLENE-MALEIC ANHYDRIDE COPOLYMER HAVING A SPECIFIC VISCOSITY OF AT LEAST 0.5, AND, WHEN THE SELECTED CLAY IS OF THE CLACIUM MONTMORILLONITE TYPE, A WATER-SOLUBLE IONIZABLE ALKALI METAL COMPOUMD HAVING AN ANION CAPABLE OF REACTING WITH A CLACIUM ION TO FORM A WATER-INSOLUBLE PRECIPITATE, SAID COMPOUND BEING PRESENT IN AN AMOUNT IN THE RANGE OF 1 TO 7 PERCENT BY WEIGHT OF SAID CLAY.
Claim 2
Dependent Claim
112 words
A COMPOSITION IN THE PRODUCTION OF VISCOUS CLAY SLURRIES COMPRISING A CLAY SELECTED FROM SODIUM MONTMORILLONITE AND CALCIUM MONTMORILLONITE, FROM 0.1 TO 10 POUNDS PER TON OF CLAY OF A COPOLYMER SELECTED FROM THE GROUP CONSISTING OF ETHYLENE-MALEIC ANHYDRIDE COPOLYMER HAVING A SPECIFIC VISCOSITY OF AT LEAST 0.1 AND ISOBUTYLENE-MALEIC ANHYDRIDE COPOLYMER HAVING A SPECIFIC VISCOSITY OF AT LEAST 0.5, AND, WHEN THE SELECTED CLAY IS OF THE CLACIUM MONTMORILLONITE TYPE, A WATER-SOLUBLE IONIZABLE ALKALI METAL COMPOUMD HAVING AN ANION CAPABLE OF REACTING WITH A CLACIUM ION TO FORM A WATER-INSOLUBLE PRECIPITATE, SAID COMPOUND BEING PRESENT IN AN AMOUNT IN THE RANGE OF 1 TO 7 PERCENT BY WEIGHT OF SAID CLAY.
References Cited (Backward Citations)
US2552775A
Cited
US2718497A
Cited
US2702788A
Cited
US2625529A
Cited
US2716094A
Cited
US2795545A
Cited
US2724696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |