US3329607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the biological purification of drinking water
Assignee: EGEMA
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Filing: 1963-01-11
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Granted: 1967-07-04
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Expires: 1983-01-11
Abstract
No abstract record available.
Inventors
- 👤 Colobert Louis
- 👤 Cier Andre
- 👤 Nofre Claude
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:14
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/50; C02F1/505; A; A01; A01N; A01N59/00; A01N59/16; A01N59/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A METHOD FOR THE BIOLIGICAL PURIFICATION OF DRINKING WATER, WHICH COMPRISES THE SUCCESSIVE PHASES OF ADDING TO THE WATER, IN THE PRESENCE THEREIN OF MOLECULAR OXYGEN, AN ENEDIOL SELECTED FORM THE GROUP CONSISTING OF ASCORBIC ACID, DIHYDROXYMALEIC ACID, AND THE REDUCTIONES IN ASSOCIATION WITH A METAL SELECTED FROM THE GROUP CONSISTING OF COPPER, IRON, TIN, COBALT AND MANGANESE WHICH IONIZES IN AQUEOUS SOLUTION AND FORMS WITH THE ENEDIOL AN OXIDATIONREDUCTION SYSTEM WHICH CAUSES THE FORMATION OF FREE HYDROXYL RADICALS HAVING A DESTRUCTIVE ACTION ON PATHOGENIC GERMS, THE MOLAR RATIO OF ENEDIOL TO METALLIC IONS BEING FROM 40:1 TO 1:40, AND THEN ADDING, A CHELATING AGENT FOR SAID METAL.
Claim 2
Independent Claim
108 words
A METHOD FOR THE BIOLIGICAL PURIFICATION OF DRINKING WATER, WHICH COMPRISES THE SUCCESSIVE PHASES OF ADDING TO THE WATER, IN THE PRESENCE THEREIN OF MOLECULAR OXYGEN, AN ENEDIOL SELECTED FORM THE GROUP CONSISTING OF ASCORBIC ACID, DIHYDROXYMALEIC ACID, AND THE REDUCTIONES IN ASSOCIATION WITH A METAL SELECTED FROM THE GROUP CONSISTING OF COPPER, IRON, TIN, COBALT AND MANGANESE WHICH IONIZES IN AQUEOUS SOLUTION AND FORMS WITH THE ENEDIOL AN OXIDATIONREDUCTION SYSTEM WHICH CAUSES THE FORMATION OF FREE HYDROXYL RADICALS HAVING A DESTRUCTIVE ACTION ON PATHOGENIC GERMS, THE MOLAR RATIO OF ENEDIOL TO METALLIC IONS BEING FROM 40:1 TO 1:40, AND THEN ADDING, A CHELATING AGENT FOR SAID METAL.
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) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |