Patent US1947712A successfully refreshed from Google Patents.
US2856418A
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Separation process for transuranic element and compounds thereof
Assignee: Individual
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Filing: 1947-11-13
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Granted: 1958-10-14
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Expires: 1967-11-13
Abstract
No abstract record available.
Inventors
- 👤 Calvin Melvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:22
CPC Classifications
C; C01; C01G; C01G56/00; C01G56/001; C22; C22B; C22B3/00; C22B3/20; C22B3/26; C22B3/306; G; G21; G21C; G21C19/00; G21C19/42; G21C19/44; G21C19/46; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02P; Y02P10/00; Y02P10/20; Y02W; Y02W30/00; Y02W30/50
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
54 words
A PROCESS FOR THE SEPARATION OF PLUTONIUM FROM AN AQUEOUS SOLUTION CONTAINING A SALT OF TETRAVALENT PLUTONIUM AND CONTAINING FROM ABOUT 0.05 TO 1 N OF A STRONG INORGANIC ACID, WHICH COMPRISES CONTACTING SAID QAUEOUS SOLUTION WITH A SOLUTION IN A NONPOLAR, SUBSTANTIALLY WATERIMMISCIBLE ORGANIC SOLVENT OF A FLUORINATED B-DIKETONE HAVING THE GENERAL FORMULA:
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) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |