US3074820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid-solid ion exchange process
Assignee: Rohm and Haas Co
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Filing: 1960-07-28
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Granted: 1963-01-22
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Expires: 1980-07-28
Abstract
No abstract record available.
Inventors
- 👤 Kunin Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:13
CPC Classifications
B; B01; B01D; B01D11/00; B01D11/04; B01J; B01J47/00; B01J47/02; B01J47/04; B01J47/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A PROCESS FOR THE REMOVAL OF CATIONS AND ANIONS FROM SOLUTIONS CONTAINING THEM WHICH COMPRISES CONTRACTING SAID SOLUTION WITH AN INTIMATE MIXTURE OF A CATION EXCHANGER SELECTED FROM THE GROUP CONSISTING OF LIQUID AND SOLID CATION EXCHANGERS AND AN ANION EXCHANGING SELECTED FROM THE GROUP CONSISTING OF LIQUID AND SOLID ANION EXCHANGER AND AN ANION EXCHANGER SELECTED FROM THE GROUP CONSISTING OF LIQUID AND SOLID ANION EXHANGERS, ONE AND ONLY ONE OF SAID EXCHANGER BEING A LIQUID, SAID LIQUID EXCHANGER BEING DISSOLVED IN AN INERT WATER-INSOLUBLE SOLVENT, AND REMOVING SOLUTIONS FROM THE CATION AND ANION EXCHANGER MIXTURE.
Claim 2
Dependent Claim
97 words
A PROCESS FOR THE REMOVAL OF CATIONS AND ANIONS FROM SOLUTIONS CONTAINING THEM WHICH COMPRISES CONTRACTING SAID SOLUTION WITH AN INTIMATE MIXTURE OF A CATION EXCHANGER SELECTED FROM THE GROUP CONSISTING OF LIQUID AND SOLID CATION EXCHANGERS AND AN ANION EXCHANGING SELECTED FROM THE GROUP CONSISTING OF LIQUID AND SOLID ANION EXCHANGER AND AN ANION EXCHANGER SELECTED FROM THE GROUP CONSISTING OF LIQUID AND SOLID ANION EXHANGERS, ONE AND ONLY ONE OF SAID EXCHANGER BEING A LIQUID, SAID LIQUID EXCHANGER BEING DISSOLVED IN AN INERT WATER-INSOLUBLE SOLVENT, AND REMOVING SOLUTIONS FROM THE CATION AND ANION EXCHANGER MIXTURE.
References Cited (Backward Citations)
US2563006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |