Patent US2899451A successfully refreshed from Google Patents.
US2899451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
m hnoi
Assignee: —
•
Filing: —
•
Granted: 1959-08-11
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Expires: 1976-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:34
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/026; G; G21; G21C; G21C19/00; G21C19/42; G21C19/44; G21C19/46; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02W; Y02W30/00; Y02W30/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A SELECTIVE COMPLEXING-ORGANIC SOLVENT EXTRACTION PROCESS FOR THE SELECTIVE RECOVERY OF URANIUM VALUES FROM AN AQUEOUS SOLUTION CONTAINING THE SAME IN THE FORM OF URANYL IONS, WHICH COMPRISES CONTACTING SAID SOLUTION WITH AN AROMATIC DITHIOCARBAMATE OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
39 words
A SELECTIVE COMPLEXING-ORGANIC SOLVENT EXTRACTION PROCESS FOR THE SELECTIVE RECOVERY OF URANIUM VALUES FROM AN AQUEOUS SOLUTION CONTAINING THE SAME IN THE FORM OF URANYL IONS, WHICH COMPRISES CONTACTING SAID SOLUTION WITH AN AROMATIC DITHIOCARBAMATE OF THE GENERAL FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |