US3038844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separations by electrodialysis
Assignee: Individual
•
Filing: 1961-01-24
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Granted: 1962-06-12
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Expires: 1981-01-24
Abstract
No abstract record available.
Inventors
- 👤 William H Webb
- 👤 Jerry D Vie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:07
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A METHOD OF SEPARATING CESIUM, CERIUM, ZIRCONIUM, AND URANIUM VALUES FROM EACH OTHER IN A CONDUCTIVE AQUEOUS SOLUTION, COMPRISING ACIDIFYING THE SOLUTION TO ABOUT 0.5 NORMAL AND THEN SUBJECTING IT TO ELECTRODIALYSIS THROUGH CATION AND ANION EXCHANGE MEMBRANES AND THEN OXIDIZING THE CERIUM VALUES IN THE REMAINING SOLUTION TO THE PLUS FOUR STATE, ELECTRODIALYZING THE SAID REMAINING SOLUTION AND REMOVING THE CERIUM VALUES FROM THE CATION EXCHANGE MEMBRANE.
Claim 2
Independent Claim
68 words
A METHOD OF SEPARATING CESIUM, CERIUM, ZIRCONIUM, AND URANIUM VALUES FROM EACH OTHER IN A CONDUCTIVE AQUEOUS SOLUTION, COMPRISING ACIDIFYING THE SOLUTION TO ABOUT 0.5 NORMAL AND THEN SUBJECTING IT TO ELECTRODIALYSIS THROUGH CATION AND ANION EXCHANGE MEMBRANES AND THEN OXIDIZING THE CERIUM VALUES IN THE REMAINING SOLUTION TO THE PLUS FOUR STATE, ELECTRODIALYZING THE SAID REMAINING SOLUTION AND REMOVING THE CERIUM VALUES FROM THE CATION EXCHANGE MEMBRANE.
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) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |