US2711362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curium-americium separation and purification process
Assignee: Individual
•
Filing: 1949-04-11
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Granted: 1955-06-21
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Expires: 1969-04-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Kenneth Street
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:04
CPC Classifications
C; C01; C01G; C01G56/00; C01G56/001; C01G56/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN A PROCESS FOR RECOVERING TRANSURANIC ELEMENT FROM A SOLUTION CONTAINING THE SAME TOGETHER WITH LANTHANIDE ELEMENTS, THE STEPS COMPRISING CONTACTING THE SOLUTION WITH A SULFONATED POLYMERIZATE OF A POLY-VINYL ARYL COMPOUND TO ADSORB SAID ELEMENTS THEREON, CHROMATOGRAPHICALLY ELUTING SAID ELEMENTS THROUGH A COMOF SAID SULFONATED POLYMERIZATE OF A POLY-VINYL ARYL COMPOUND WITH A HYDROCLORIC ACID SOLUTION HAVING A CONCENTRATION IN THE RANGE OF ABOUT 6 M TO YIELD 13.3 M TO YIELD FRACTIONS THEREOF CONTAINING ENHANCED PROPORTIONS OF SAID TRANSURIC ELEMENTS, AND COLLECTING SAID FRACTIONS CONTAINING ENHANCED PROPORTIONS OF TRANSSUANIC ELEMENTS.
Claim 2
Dependent Claim
92 words
IN A PROCESS FOR RECOVERING TRANSURANIC ELEMENT FROM A SOLUTION CONTAINING THE SAME TOGETHER WITH LANTHANIDE ELEMENTS, THE STEPS COMPRISING CONTACTING THE SOLUTION WITH A SULFONATED POLYMERIZATE OF A POLY-VINYL ARYL COMPOUND TO ADSORB SAID ELEMENTS THEREON, CHROMATOGRAPHICALLY ELUTING SAID ELEMENTS THROUGH A COMOF SAID SULFONATED POLYMERIZATE OF A POLY-VINYL ARYL COMPOUND WITH A HYDROCLORIC ACID SOLUTION HAVING A CONCENTRATION IN THE RANGE OF ABOUT 6 M TO YIELD 13.3 M TO YIELD FRACTIONS THEREOF CONTAINING ENHANCED PROPORTIONS OF SAID TRANSURIC ELEMENTS, AND COLLECTING SAID FRACTIONS CONTAINING ENHANCED PROPORTIONS OF TRANSSUANIC ELEMENTS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-20 | 1958-12-20 | 1959-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-20 | 1962-12-20 | 1963-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-20 | 1966-12-20 | 1967-06-21 | $7700.00 | Window Closed / Lapsed |