US3342742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing aluminate coagulants
Assignee: ChampionX LLC
•
Filing: 1964-03-24
•
Granted: 1967-09-19
•
Expires: 1984-03-24
Abstract
No abstract record available.
Inventors
- 👤 Thomas G Cocks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:34
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/5236
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A METHOD OF PREPARING A UNITARY COAGULATING AGENT WHICH IS COMPOSED OF AN ALKALI METAL ALUMINTE, A COLLOIDAL CLAY AND WATER AND WHICH IS CHARACTERIZED AS HAVING THE PROPERTIES OF IMPROVED FEEDING AND HANDLING WHICH COMPRISES THE STEPS OF ADDING FROM 2 TO 40% BY WEIGHT, BASED ON THE WEIGHT OF THE TOTAL COMPOSITION, OF A COLLOIDAL CLAY TO A WETTED SOLID ALKALI METAL ALUMINATE IS COATED WITH THE COLLOIDAL CLAY, AND THEN DRYING THE THUS COATED ALKALI METAL ALUMINATE TO A MOISTURE CONTENT WITHIN THE RANGE OF FROM 5 TO 25% BY WEIGHT.
Claim 2
Independent Claim
94 words
A METHOD OF PREPARING A UNITARY COAGULATING AGENT WHICH IS COMPOSED OF AN ALKALI METAL ALUMINTE, A COLLOIDAL CLAY AND WATER AND WHICH IS CHARACTERIZED AS HAVING THE PROPERTIES OF IMPROVED FEEDING AND HANDLING WHICH COMPRISES THE STEPS OF ADDING FROM 2 TO 40% BY WEIGHT, BASED ON THE WEIGHT OF THE TOTAL COMPOSITION, OF A COLLOIDAL CLAY TO A WETTED SOLID ALKALI METAL ALUMINATE IS COATED WITH THE COLLOIDAL CLAY, AND THEN DRYING THE THUS COATED ALKALI METAL ALUMINATE TO A MOISTURE CONTENT WITHIN THE RANGE OF FROM 5 TO 25% BY WEIGHT.
References Cited (Backward Citations)
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Cited
US1604126A
Cited
US2284827A
Cited
US2420340A
Cited
US3219578A
Cited
US3082173A
Cited
US3023169A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |