US2995458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reducing dilatancy of clays
Assignee: Georgia Kaolin Co
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Filing: 1959-05-22
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Granted: 1961-08-08
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Expires: 1979-05-22
Abstract
No abstract record available.
Inventors
- 👤 Haydn H Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:57
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/131
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A CLAY COMPOSITION IN A FORM FOR USE AS A CONCENTRATED SLURRY HAVING 50% TO 72% SOLIDS AND A PH OF ABOUT 5.5 TO 10.0, CONSISTING ESSENTIALLY OF A FINELY DIVIDED CLAY, A DISPERSING AGENT, AND ABOUT 0.05% TO ABOUT 0.2% BY WEIGHT, BASED ON THE DRY CLAY, OF LITHIUM HYDROXIDE IN A LIQUID MEDIUM, SAID HYDROXIDE HAVING THE EFFECT OF REDUCING THE SLURRY DILATANCY OF SAID CLAY AT HIGHER SHEAR RATES.
Claim 2
Dependent Claim
72 words
A CLAY COMPOSITION IN A FORM FOR USE AS A CONCENTRATED SLURRY HAVING 50% TO 72% SOLIDS AND A PH OF ABOUT 5.5 TO 10.0, CONSISTING ESSENTIALLY OF A FINELY DIVIDED CLAY, A DISPERSING AGENT, AND ABOUT 0.05% TO ABOUT 0.2% BY WEIGHT, BASED ON THE DRY CLAY, OF LITHIUM HYDROXIDE IN A LIQUID MEDIUM, SAID HYDROXIDE HAVING THE EFFECT OF REDUCING THE SLURRY DILATANCY OF SAID CLAY AT HIGHER SHEAR RATES.
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) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |