Patent US3830736A successfully refreshed from Google Patents.
US3830736A
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US
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Water clarification
Assignee: General Mills Chemicals Inc
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Filing: 1973-01-02
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Granted: 1974-08-20
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Expires: 1993-01-02
Abstract
Abstract METHOD OF CLARIFYING WATER WHICH CONTAINS ORGANIC SUBSTANCES EITHER IN DISSOLVED OR SUSPENDED FORM. THE METHOD IS ESPECIALLY USEFUL IN WATER HAVING A TEMPERATURE BELOW ABOUT 12* C. THE METHOD INCLUDES HAVING ANIONIC DERIVATIVES OF GALACTOMANNANS AS FLOCCULENTS.
Inventors
- 👤 F Werdouschegg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:29
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/5236; C02F1/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |