Patent US1621686A successfully refreshed from Google Patents.
Patent US2950983A successfully refreshed from Google Patents.
US2950983A
Expired / Lapsed
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Clay products and method of reducing clay viscosity
Assignee: Georgia Kaolin Co
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Filing: 1957-12-26
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Granted: 1960-08-30
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Expires: 1977-12-26
Abstract
No abstract record available.
Inventors
- 👤 Ben W Rowland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:33
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/131
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THE METHOD OF REDUCING THE VISCOSIY OF CRUDE CLAY COMPRISING THE STEPS OF FORMING AN AQUEOUS DISPERSION OF THE CLAY SEPARATING THE WATER FROM THE CLAY INCLUDING HEAT DRYING THE CLAY AT A TEMPERATURE ABOVE ABOUT 90* C BUT BELOW THE TEMPERATURE OF CALCINING, REFORMING AN AQUEOUS DISPERSION OF THE DEWATERED CLAY AND REPEATING THE STEPS OF REMOVING THE WATER FROM THE CLAY INCLUDING HEAT DRYING THE CLAY AT A TEMPERATURE ABOVE ABOUT 90*C. BUT BELOW THE TEMPERATURE OF CALCINING AND REFORMING AN AQUEOUS DISPERSION UNTIL A DESIRED LOW VISCOSITY IS OBTAINED IN THE RESULTING CLAY.
Claim 2
Independent Claim
96 words
THE METHOD OF REDUCING THE VISCOSIY OF CRUDE CLAY COMPRISING THE STEPS OF FORMING AN AQUEOUS DISPERSION OF THE CLAY SEPARATING THE WATER FROM THE CLAY INCLUDING HEAT DRYING THE CLAY AT A TEMPERATURE ABOVE ABOUT 90* C BUT BELOW THE TEMPERATURE OF CALCINING, REFORMING AN AQUEOUS DISPERSION OF THE DEWATERED CLAY AND REPEATING THE STEPS OF REMOVING THE WATER FROM THE CLAY INCLUDING HEAT DRYING THE CLAY AT A TEMPERATURE ABOVE ABOUT 90*C. BUT BELOW THE TEMPERATURE OF CALCINING AND REFORMING AN AQUEOUS DISPERSION UNTIL A DESIRED LOW VISCOSITY IS OBTAINED IN THE RESULTING CLAY.
References Cited (Backward Citations)
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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) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |