Patent US2859094A successfully refreshed from Google Patents.
US2859094A
Expired / Lapsed
US
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Uranium extraction process using synergistic reagents
Assignee: Individual
•
Filing: 1957-02-07
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Granted: 1958-11-04
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Expires: 1977-02-07
Abstract
No abstract record available.
Inventors
- 👤 John M Schmitt
- 👤 Jr Charles A Blake
- 👤 Keith B Brown
- 👤 Charles F Coleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:26
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
37 words
A PROCESS FOR THE RECOVERY OF URANIUM VALUES FROM AN AQUEOUS ACIDIC SOLUTION CONTAINING SAID VALUES WHICH COMPRISES CONTACTING SAID SOLUTION WITH AN ORGANIC MIXTURE COMPRISES OF A SUBSTANTIALLY WATER-IMMISCIBLE DILUENT, A DIALKYLPHOSPHORIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
37 words
A PROCESS FOR THE RECOVERY OF URANIUM VALUES FROM AN AQUEOUS ACIDIC SOLUTION CONTAINING SAID VALUES WHICH COMPRISES CONTACTING SAID SOLUTION WITH AN ORGANIC MIXTURE COMPRISES OF A SUBSTANTIALLY WATER-IMMISCIBLE DILUENT, A DIALKYLPHOSPHORIC ACID HAVING THE FORMULA
References Cited (Backward Citations)
US2717696A
Cited
US2769686A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |