Patent US3082146A successfully refreshed from Google Patents.
US3082146A
Expired / Lapsed
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Process for the treatment of water
Assignee: CHEMICAL RES LAB OF AMERICA IN
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Filing: 1959-02-04
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Granted: 1963-03-19
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Expires: 1979-02-04
Abstract
No abstract record available.
Inventors
- 👤 John F Wentworth
- 👤 John R Hefler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:46
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/722; Y; Y10; Y10S; Y10S210/00; Y10S210/928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A PROCESS FOR PREVENTING THE GROTH OF MICROORGANISMS IN A CIRCULATING WATER SYSTEM WHICH COMPRISES CONTINUOUSLY ADJUSTING THE PH OF SAID SYSTEM TO A VALUE BETWEEN ABOUT 4 AND 8 WHILE MAINTAINING A RESIDUAL CHLOROUS ACID CONCENTRATION IN SAID CIRCULATION WATER OF BETWEEN ABOUT 1 AND 0.1 P.P.M. BY MIXING THEREWITH SODIUM CHLORITE AND A PEROXYGEN COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROGEN PEROXIDE, SODIUM PEROXIDE AND SODIUM PERCARBONATE.
Claim 2
Dependent Claim
70 words
A PROCESS FOR PREVENTING THE GROTH OF MICROORGANISMS IN A CIRCULATING WATER SYSTEM WHICH COMPRISES CONTINUOUSLY ADJUSTING THE PH OF SAID SYSTEM TO A VALUE BETWEEN ABOUT 4 AND 8 WHILE MAINTAINING A RESIDUAL CHLOROUS ACID CONCENTRATION IN SAID CIRCULATION WATER OF BETWEEN ABOUT 1 AND 0.1 P.P.M. BY MIXING THEREWITH SODIUM CHLORITE AND A PEROXYGEN COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROGEN PEROXIDE, SODIUM PEROXIDE AND SODIUM PERCARBONATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |