US2776185A
Expired / Lapsed
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Method of concentrating fissionable material
Assignee: Individual
•
Filing: 1945-04-12
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Granted: 1957-01-01
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Expires: 1965-04-12
Abstract
No abstract record available.
Inventors
- 👤 Louis B Werner
- 👤 Bernard A Fries
- 👤 Glenn T Seaborg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:38
CPC Classifications
C; C01; C01G; C01G56/00; C01G56/001; C01G56/002; G; G21; G21C; G21C19/00; G21C19/42; G21C19/44; G21C19/46; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02W; Y02W30/00; Y02W30/50
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
A METHOD OF OBTAINING A CONCENTRATE OF PLUTONIUM VALUES WHICH COMPRISES CONTACTING AQUEOUS SOLUTION OF PLUTONIUM COMPOUNDS WITH A SUBSTANTIALLY WATER INSOLUBLE LANTHANUM COMPOUND WHEREBY THE PLUTONIUM VALUES IN THE SOLUTION BECOMES ASSOCIATED WITH THE LANTHANUM COMPOUND, REMOVING THE INSOLUBLE LANTHANUM COMPOUND TOGETHER WITH THE ASSOCIATED PLUTONIUM VALUES DISSOLVING SAID PLUTONIUM VALUES TO FORM A SECOND AQUEOUS SOLUTION OF SMALLER VOLUME THAN THE FIRST NAMED AQUEOUS SOLUTION AND REMOVING SAID PLUTONIUM VALUES FROM THE SECOND SOLUBLE BY CONTACTING THE SECOND SOLUTION WITH COLUMBIC OXIDE.
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) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |