Patent US2864668A successfully refreshed from Google Patents.
US2864668A
Expired / Lapsed
US
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Uranium extraction process
Assignee: Individual
•
Filing: 1956-11-23
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Granted: 1958-12-16
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Expires: 1976-11-23
Abstract
No abstract record available.
Inventors
- 👤 Willis H Baldwin
- 👤 Cecil E Higgins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:00
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/026; B; B01; B01D; B01D11/00; B01D11/04; B01D11/0492
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A PROCESS FOR RECOVERING URANIUM VALUES FROM AN ACIDIC AQUEOUS SOLUTION CONTAINING SAID VALUES WHICH COMPRISES CONTACTING SAID SOLUTION WITH AN ORGANIC SOLUTION COMPRISED OF A SUBSTANTIALLY WATER-IMMISCIBLE ORGANIC DIUENT AND A MEMEBER SELECTED FROM THE GROUP HAVING THE FORMULA
Claim 2
Dependent Claim
40 words
A PROCESS FOR RECOVERING URANIUM VALUES FROM AN ACIDIC AQUEOUS SOLUTION CONTAINING SAID VALUES WHICH COMPRISES CONTACTING SAID SOLUTION WITH AN ORGANIC SOLUTION COMPRISED OF A SUBSTANTIALLY WATER-IMMISCIBLE ORGANIC DIUENT AND A MEMEBER SELECTED FROM THE GROUP HAVING THE FORMULA
References Cited (Backward Citations)
US2764471A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |