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Patent US2877250A successfully refreshed from Google Patents.
US2877250A
Expired / Lapsed
US
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Recovery of uranium values
Assignee: Individual
•
Filing: 1956-12-10
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Granted: 1959-03-10
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Expires: 1976-12-10
Abstract
No abstract record available.
Inventors
- 👤 Keith B Brown
- 👤 Jr David J Crouse
- 👤 John G Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:23
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
42 words
A PROCESS FOR THE RECOVERY OF URANIUM VALUES FROM AN AQUEOUS ACIDIC SOLUTION CONTAINING SAID VALUES WHICH COMPRISES CONTACTING SAID SOLUTION WITH A MIXTURE COMPRISED OF A SUBSTANTIALLY WATER-IMMISCIBLE NON-POLAR, INERT ORGANIC DILUENT AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
42 words
A PROCESS FOR THE RECOVERY OF URANIUM VALUES FROM AN AQUEOUS ACIDIC SOLUTION CONTAINING SAID VALUES WHICH COMPRISES CONTACTING SAID SOLUTION WITH A MIXTURE COMPRISED OF A SUBSTANTIALLY WATER-IMMISCIBLE NON-POLAR, INERT ORGANIC DILUENT AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF
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) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |