US2743157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Re-extraction of uranium from organic solvents
Assignee: Individual
•
Filing: 1952-07-28
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Granted: 1956-04-24
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Expires: 1972-07-28
Abstract
No abstract record available.
Inventors
- 👤 French T Hagemann
- 👤 Leonard I Katzin
- 👤 Nison N Hellman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:20
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A PROCESS OF REDUCING THE VOLUME OF AQUEOUS MEDIUM REQUIRED FOR THE PRACTICALLY QUANTITATIVE EXTRACTION OF HEXAVALENT URANIUM VALUES FROM A DIETHYL ETHER SOLUTION WITH SAID AQUEOUS MEDIUM, COMPRISING DISSOLVING A COMPLEXING AGENT SELECTED FROM THE GROUP CONSISTING OF SULFATE, PHOSPHATE, OXALATE, AND FLUORIDE IN WATER, CONTACTING SAID DIETHYL ETHER SOLUTION WITH THE AQUEOUS SOLUTION OF SADI COMPLEXING AGENT, AND SEPARATING AN AQUEOUS URANIUM VALUES-CONTAINING PHASE FROM URANIUMDEPLETED DIETHYL ETHER.
Claim 2
Dependent Claim
70 words
A PROCESS OF REDUCING THE VOLUME OF AQUEOUS MEDIUM REQUIRED FOR THE PRACTICALLY QUANTITATIVE EXTRACTION OF HEXAVALENT URANIUM VALUES FROM A DIETHYL ETHER SOLUTION WITH SAID AQUEOUS MEDIUM, COMPRISING DISSOLVING A COMPLEXING AGENT SELECTED FROM THE GROUP CONSISTING OF SULFATE, PHOSPHATE, OXALATE, AND FLUORIDE IN WATER, CONTACTING SAID DIETHYL ETHER SOLUTION WITH THE AQUEOUS SOLUTION OF SADI COMPLEXING AGENT, AND SEPARATING AN AQUEOUS URANIUM VALUES-CONTAINING PHASE FROM URANIUMDEPLETED DIETHYL ETHER.
References Cited (Backward Citations)
US2227833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |