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US2506945A
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Treatment of pitchblende ores
Assignee: United States Atomic Energy Commission
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Filing: 1948-05-10
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Granted: 1950-05-09
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Expires: 1968-05-10
Abstract
No abstract record available.
Inventors
- 👤 Henry C Thomas
- 👤 Andrew S Tomcufcik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:19
CPC Classifications
C; C01; C01F; C01F13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A PROCESS FOR EXTRACTING URANIUM VALUES AND RADIUM VALUES FROM PITCHBLENDE ORES WHICH COMPRISES REDUCING THE ORES TO A COMMINUTED CONDITION, THEREAFTER REACTING THE ORE WITH NITRIC ACID IN THE PRESENCE OF AN ADDITIVE FROM THE CLASS CONSISTING OF AMMONIUM NITRATE AND SODIUM NITRATE AND A MIXTURE OF THE TWO TO DISSOLVE THE RADIUM VALUES AND URANIUM VALUES AND THEREAFTER RECOVERING THE EXTRACTED URANIUM AND RADIUM VALUES.
Claim 2
Dependent Claim
67 words
A PROCESS FOR EXTRACTING URANIUM VALUES AND RADIUM VALUES FROM PITCHBLENDE ORES WHICH COMPRISES REDUCING THE ORES TO A COMMINUTED CONDITION, THEREAFTER REACTING THE ORE WITH NITRIC ACID IN THE PRESENCE OF AN ADDITIVE FROM THE CLASS CONSISTING OF AMMONIUM NITRATE AND SODIUM NITRATE AND A MIXTURE OF THE TWO TO DISSOLVE THE RADIUM VALUES AND URANIUM VALUES AND THEREAFTER RECOVERING THE EXTRACTED URANIUM AND RADIUM VALUES.
References Cited (Backward Citations)
US1165693A
Cited
US1471514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |