US2863718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plutonium concentration and decontamination method
Assignee: Individual
•
Filing: 1955-10-28
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Granted: 1958-12-09
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Expires: 1975-10-28
Abstract
No abstract record available.
Inventors
- 👤 Donald C Overholt
- 👤 Frank W Tober
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:08
CPC Classifications
G; G21; G21C; G21C19/00; G21C19/42; G21C19/44; G21C19/46; C; C01; C01G; C01G56/00; C01G56/001; C01G56/002; C01G99/00; C01G99/006; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02W; Y02W30/00; Y02W30/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A PROCESS FOR CONCENTRATING AND DECONTAMINATING PLUTONIUM FROM AN AQUEOUS MINERAL ACID SOLUTION CONTAINING SAME IN SMALL CONCENTRATION, TOGETHER WITH EXTRANEOUS IMPURITIES, WHICH COMPRISES ADJUSTING SAID SOLUTION TO A FRACTIONAL-NORMAL MINERAL ACID CONCENTRATION AND SAID PLUTONIUM TO PU+3 OXIDATION STATE, CONTACTING THE RESULTING ADJUSTED SOLUTION WITH A COMMINUTED BED OF A CATION EXCHANGER, AND THEREAFTER ELUTING THE RESULTING ADSORBED PLUTONIUM, WHILE MAINTAINING SAID PLUTONIUM IN PU+3 OXIDATION STATE, WITH AN AQUEOUS NITRIC ACID SOLUTION OF A CONCENTRATION AT LEAST AS GREAT AS APPROXIMATELY 4 MOLAR NITRIC ACID.
Claim 2
Dependent Claim
87 words
A PROCESS FOR CONCENTRATING AND DECONTAMINATING PLUTONIUM FROM AN AQUEOUS MINERAL ACID SOLUTION CONTAINING SAME IN SMALL CONCENTRATION, TOGETHER WITH EXTRANEOUS IMPURITIES, WHICH COMPRISES ADJUSTING SAID SOLUTION TO A FRACTIONAL-NORMAL MINERAL ACID CONCENTRATION AND SAID PLUTONIUM TO PU+3 OXIDATION STATE, CONTACTING THE RESULTING ADJUSTED SOLUTION WITH A COMMINUTED BED OF A CATION EXCHANGER, AND THEREAFTER ELUTING THE RESULTING ADSORBED PLUTONIUM, WHILE MAINTAINING SAID PLUTONIUM IN PU+3 OXIDATION STATE, WITH AN AQUEOUS NITRIC ACID SOLUTION OF A CONCENTRATION AT LEAST AS GREAT AS APPROXIMATELY 4 MOLAR NITRIC ACID.
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) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |