Patent US2776184A successfully refreshed from Google Patents.
US2776184A
Expired / Lapsed
US
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Processes for recovering and purifying uranium
Assignee: Individual
•
Filing: 1945-03-09
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Granted: 1957-01-01
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Expires: 1965-03-09
Abstract
No abstract record available.
Inventors
- 👤 Martin D Kamen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:37
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
THE PROCESS OF RECLAIMING URANIUM VALUES FROM DEPOSITS FORMED ON THE PARTS OF A CALUTRON COMPRISING WASHING SAID PARTS WITH AN AQUEOUS SOLVENT AND PRODUCING AN OXIDIZED ACIDIC SOLUTION CONTAINING UO2++ IONS TOGETHER WITH IMPURITIES INCLUDING CU++, FE+++, CR+++ AND NI++ IONS, ELECTROLYZING SAID SOLUTION TO REDUCE THE UO2++ UONS TO THE URANOUS STATE, AND AT LEAST SOME OF SAID IMPURITIES TO A LOWER VALENT STATE, TREATING SAID ELECTROLYZED SOLUTION WITH ANNONIA TO PRECIPITATE URANIUM HYDROXIDE AWAY FROM THE IMPURITIES REMAINING IN THE SOLUTION, AND SEPARATING SAID URANOUS HYDROXIDE FROM THE SOLUTION.
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 |