Patent US2960979A successfully refreshed from Google Patents.
Patent US3479282A successfully refreshed from Google Patents.
US3479282A
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Method of flocculating suspended solids using copolymers as flocculating agents
Assignee: ChampionX LLC
•
Filing: 1964-07-01
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Granted: 1969-11-18
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Expires: 1984-07-01
Abstract
No abstract record available.
Inventors
- 👤 Walter M Chamot
- 👤 John T Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:37
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/04; C08F220/06; C02; C02F; C02F1/00; C02F1/52; C02F1/54; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3128249A
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US3033782A
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US3020230A
Cited
US3055827A
Cited
US3118832A
Cited
US3079331A
Cited
US3232793A
Cited
US3259569A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |