US3235490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for flocculating and settling solids suspended in an aqueous medium and composition for use therein
Assignee: KERR MC GEE OIL IND Inc
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Filing: 1962-07-12
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Granted: 1966-02-15
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Expires: 1982-07-12
Abstract
No abstract record available.
Inventors
- 👤 Mayer B Goren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:28
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
AN IMPROVED PROCESS FOR FLOCCULATING AND SETTLING SOLIDS SUSPENDEDD IN AN AQUEOUS MEDIUM COMPRISING TREATING THE SUSPENSION OF SOLIDS WITH A FLOCCULATING AGENT COMPRISING A DILUTE DISPENSION OF A WATER SWELLABLE AND WATER DISPERSIBLE POLYACRYLAMIDE, SAID POLYARCYLAMIDE BEING A COPOLYMERIZATION PRODUCT OF ACRYLAMIDE AND NOT MORE THAN ONE PERCENT BY WEIGHT OF THE COPOLYMERIZATION PRODUCT OF A WATER SOLUBLE DIOLEFIN, AND ALLOWING THE FLOCCULATED SOLIDS TO SETTLE.
Claim 2
Dependent Claim
67 words
AN IMPROVED PROCESS FOR FLOCCULATING AND SETTLING SOLIDS SUSPENDEDD IN AN AQUEOUS MEDIUM COMPRISING TREATING THE SUSPENSION OF SOLIDS WITH A FLOCCULATING AGENT COMPRISING A DILUTE DISPENSION OF A WATER SWELLABLE AND WATER DISPERSIBLE POLYACRYLAMIDE, SAID POLYARCYLAMIDE BEING A COPOLYMERIZATION PRODUCT OF ACRYLAMIDE AND NOT MORE THAN ONE PERCENT BY WEIGHT OF THE COPOLYMERIZATION PRODUCT OF A WATER SOLUBLE DIOLEFIN, AND ALLOWING THE FLOCCULATED SOLIDS TO SETTLE.
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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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |