US2737438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of uranium from gold ore leach residues
Assignee: Individual
•
Filing: 1951-08-08
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Granted: 1956-03-06
•
Expires: 1971-08-08
Abstract
No abstract record available.
Inventors
- 👤 Antoine M Gaudin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:07
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0221; C22B60/0226; C22B60/0234; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A PROCESS FOR RECOVERING URANIUM FROM A URANIUM AND GOLD BEARING ORE WHICH COMPRISES THE STEPS OF EXTRACTING GOLD FROM SAID ORE WITH AN AQUEOUS SOLUTION OF AN ALKALI METAL CYANIDE, TREATING THE RESIDUE OF SAID GOLD EXTRACTION STEP WITH AN AQUEOUS SULFURIC ACID SOLUTION CONTAINING SOLUBLE IRON SALTS TO LEACH URANIUM VALUES FROM SAID RESIDUES AND RECOVERING URANIUM COMPOUNDS FROM THE RESULTING LEACH SOLUTION.
Claim 2
Dependent Claim
65 words
A PROCESS FOR RECOVERING URANIUM FROM A URANIUM AND GOLD BEARING ORE WHICH COMPRISES THE STEPS OF EXTRACTING GOLD FROM SAID ORE WITH AN AQUEOUS SOLUTION OF AN ALKALI METAL CYANIDE, TREATING THE RESIDUE OF SAID GOLD EXTRACTION STEP WITH AN AQUEOUS SULFURIC ACID SOLUTION CONTAINING SOLUBLE IRON SALTS TO LEACH URANIUM VALUES FROM SAID RESIDUES AND RECOVERING URANIUM COMPOUNDS FROM THE RESULTING LEACH SOLUTION.
References Cited (Backward Citations)
US1098282A
Cited
US2199696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |