US3020231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coagulation
Assignee: Union Carbide Corp
•
Filing: 1957-11-18
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Granted: 1962-02-06
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Expires: 1977-11-18
Abstract
No abstract record available.
Inventors
- 👤 Charles E Colwell
- 👤 Robert C Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:22
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/0278; B; B01; B01J; B01J20/00; B01J20/22; C02; C02F; C02F1/00; C02F1/52; C02F1/5236; C02F1/54; C22B3/00; C22B3/20; C22B3/44; C02F2101/00; C02F2101/006; Y; Y02; Y02P; Y02P10/00; Y02P10/20; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/906; Y10S210/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A METHOD FOR COAGULATING SOLIDS COMPRISING CLAY MINERAL SUSPENDED IN AN AQUEOUS MEDIUM WHICH COMPRISES ADDING TO SAID AQUEOUS MEDIUM A COAGULATING AMOUNT OF PLOY(ETHYLENE OXIDE) WHICH HAS A REDUCED VISCOSITY VALUE OF AT LEAST 1.0 AS MEASURED AT A CONCENTRATION OF 0.2 GRAM OF SAID POLY (ETHYLENE OXIDE) IN 100 MILLILITERS OF ACETONITRILE AT 30*C.
Claim 2
Independent Claim
56 words
A METHOD FOR COAGULATING SOLIDS COMPRISING CLAY MINERAL SUSPENDED IN AN AQUEOUS MEDIUM WHICH COMPRISES ADDING TO SAID AQUEOUS MEDIUM A COAGULATING AMOUNT OF PLOY(ETHYLENE OXIDE) WHICH HAS A REDUCED VISCOSITY VALUE OF AT LEAST 1.0 AS MEASURED AT A CONCENTRATION OF 0.2 GRAM OF SAID POLY (ETHYLENE OXIDE) IN 100 MILLILITERS OF ACETONITRILE AT 30*C.
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |