US3492225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coagulation and settling of finely divided solids from aqueous suspensions thereof
Assignee: ChampionX LLC
•
Filing: 1966-11-02
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Granted: 1970-01-27
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Expires: 1986-11-02
Abstract
No abstract record available.
Inventors
- 👤 John W Ryznar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:53
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/54; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/906; Y10S210/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A METHOD OF COAGULATING AND PRODUCING SETTLING OF FINELY DIVIDED SOLIDS WHICH ARE PREDOMINANTLY INORGANIC AND NORMALLY REMAIN SUSPENDED IN WATER IN CONCENTRATIONS OF .003% TO 3% BY WEIGHT OF THE SUSPENSION WHICH COMPRISES TREATING SAID SUSPENSION WITH ABOUT 1 TO 15 PARTS PER MILLION BASED ON THE WEIGHT OF THE TOTAL SUSPENSION OF A SYNTHETIC POLYMER IN A WATER DISPERSIBLE STATE HAVING A WEIGHT AVERAGE MOLECULAR WEIGHT OF AT LEAST 10,000 AND HAVING A LINEAR HYDROCARBON STRUCTURE CONTAINING AN ALKOXY GROUP IN A SIDE CHAIN, AND SEPARATING THE RESULTANT COAGULATED SOLIDS FROM SUSPENSION IN SAID WATER.
Claim 2
Independent Claim
97 words
A METHOD OF COAGULATING AND PRODUCING SETTLING OF FINELY DIVIDED SOLIDS WHICH ARE PREDOMINANTLY INORGANIC AND NORMALLY REMAIN SUSPENDED IN WATER IN CONCENTRATIONS OF .003% TO 3% BY WEIGHT OF THE SUSPENSION WHICH COMPRISES TREATING SAID SUSPENSION WITH ABOUT 1 TO 15 PARTS PER MILLION BASED ON THE WEIGHT OF THE TOTAL SUSPENSION OF A SYNTHETIC POLYMER IN A WATER DISPERSIBLE STATE HAVING A WEIGHT AVERAGE MOLECULAR WEIGHT OF AT LEAST 10,000 AND HAVING A LINEAR HYDROCARBON STRUCTURE CONTAINING AN ALKOXY GROUP IN A SIDE CHAIN, AND SEPARATING THE RESULTANT COAGULATED SOLIDS FROM SUSPENSION IN SAID WATER.
References Cited (Backward Citations)
US3418237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |