US2599558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of regenerating anion exchange materials and composition therefor
Assignee: Veolia WTS Systems USA Inc
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Filing: 1947-09-25
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Granted: 1952-06-10
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Expires: 1967-09-25
Abstract
No abstract record available.
Inventors
- 👤 Juda Walter
- 👤 Carron Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:40
CPC Classifications
B; B01; B01J; B01J49/00; B01J49/05; B01J49/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
METHD OF TREATING ANION EXCHANGE MATERIALS, A LOCALIZED TOP PORTION OF WHICH IS IN COMBINATION WITH AN ACID WHICH FORMS AN INSOLUBLE SALT WITH AN ALKALINE EARTH METAL AND A LOWER PORTION OF WHICH IS IN COMBINATION WITH AN ACID WHICH FORMS SOLUBLE SALTS WITH ALKALINE EARTH METALS, TO GENERATE THE SAME TO BASIC FORM, COMPRISING THE STEP OF CIRCULATING AN AQUEOUS SOLUTION OF ALKALINE EARTH METAL HYDROXIDE UPWARD THROUGH SAID ANION EXCHANGE MATERIAL.
Claim 2
Dependent Claim
74 words
METHD OF TREATING ANION EXCHANGE MATERIALS, A LOCALIZED TOP PORTION OF WHICH IS IN COMBINATION WITH AN ACID WHICH FORMS AN INSOLUBLE SALT WITH AN ALKALINE EARTH METAL AND A LOWER PORTION OF WHICH IS IN COMBINATION WITH AN ACID WHICH FORMS SOLUBLE SALTS WITH ALKALINE EARTH METALS, TO GENERATE THE SAME TO BASIC FORM, COMPRISING THE STEP OF CIRCULATING AN AQUEOUS SOLUTION OF ALKALINE EARTH METAL HYDROXIDE UPWARD THROUGH SAID ANION EXCHANGE MATERIAL.
References Cited (Backward Citations)
US2413791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |