Patent US4022484A successfully refreshed from Google Patents.
Patent US2909406A successfully refreshed from Google Patents.
US2909406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for decontaminating thorium and uranium with respect to ruthenium
Assignee: Individual
•
Filing: 1958-05-20
•
Granted: 1959-10-20
•
Expires: 1978-05-20
Abstract
No abstract record available.
Inventors
- 👤 Albert B Meservey
- 👤 Robert H Rainey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:16
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/026; C01; C01F; C01F15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
IN A PROCESS FOR THE SEPARTION OF THORIUM AND URANIUM FROM AN AQUEOUS NITRATE FEED SOLUTION CONTAINING SAID ELEMENTS TOGETHER WITH PROTACTINIUM AND FISSION PRODUCTS WHICH COMPRISES CONTACTING SAID SOLUTION WITH AN ORGANIC SOLVENT AND SEPARATING THE RESULTING ORGANIC PHASE CONTAINING SAID THORIUM AND URANIUM FROM THE RESULTING AQUEOUS PHASES CONTAINING SAID PROTACTINIUM AND FISSION PRODUCTS, THE IMPROVEMENT WHICH COMPRISES PROVIDING IN SAID FEED SOLUTION IONS SELECTED FROM THE GROUP CONSISTING OF SULFITE IONS AND BISULFITE IONS.
Claim 2
Dependent Claim
77 words
IN A PROCESS FOR THE SEPARTION OF THORIUM AND URANIUM FROM AN AQUEOUS NITRATE FEED SOLUTION CONTAINING SAID ELEMENTS TOGETHER WITH PROTACTINIUM AND FISSION PRODUCTS WHICH COMPRISES CONTACTING SAID SOLUTION WITH AN ORGANIC SOLVENT AND SEPARATING THE RESULTING ORGANIC PHASE CONTAINING SAID THORIUM AND URANIUM FROM THE RESULTING AQUEOUS PHASES CONTAINING SAID PROTACTINIUM AND FISSION PRODUCTS, THE IMPROVEMENT WHICH COMPRISES PROVIDING IN SAID FEED SOLUTION IONS SELECTED FROM THE GROUP CONSISTING OF SULFITE IONS AND BISULFITE IONS.
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) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |