US2903335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of fission products from plutonium by precipitation
Assignee: Individual
•
Filing: 1946-12-04
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Granted: 1959-09-08
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Expires: 1966-12-04
Abstract
No abstract record available.
Inventors
- 👤 Glenn T Seaborg
- 👤 Stanley G Thompson
- 👤 Norman R Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:55
CPC Classifications
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
87 words
IN A PROCESS FOR SEPARATING PLUTONIUM FROM FISSION PRODUCTS IN AQUEOUS NITRIC ACID SOLUTION BY DECONTAMINATION STEPS INCLUDING BY-PRODUCT CARIER PRECIPITATION, THE IMPROVEMEMT WHICH COMPRISES ADDING TO AN AQUEOUS SOLUTION CONTAINING SAID FISSION PRODUCTS AND PLUTONIUM IN A VALENCE STATE GREATER THAN PLUS FOUR A NITRIC-ACID-SOLUBLE CERIC COMPOUND, A NITRIC-ACID-SOLUBLE ZIRCONIUM COMPOUND, AND A CARRIER CATION, COPRECIPITATING SAID ZIRCONIUM, CERIC AND CARRIER IONS, AND REMOVING THE MIXED PRECIPITATE FORMED, THE QUANTITY OF SAID CERIUM AND ZIRCONIUM PRECIPITATES BEING BETWEEN 0.05 AND 2.5 GRAMS. PER LITER OF SOLUTION.
Claim 2
Dependent Claim
87 words
IN A PROCESS FOR SEPARATING PLUTONIUM FROM FISSION PRODUCTS IN AQUEOUS NITRIC ACID SOLUTION BY DECONTAMINATION STEPS INCLUDING BY-PRODUCT CARIER PRECIPITATION, THE IMPROVEMEMT WHICH COMPRISES ADDING TO AN AQUEOUS SOLUTION CONTAINING SAID FISSION PRODUCTS AND PLUTONIUM IN A VALENCE STATE GREATER THAN PLUS FOUR A NITRIC-ACID-SOLUBLE CERIC COMPOUND, A NITRIC-ACID-SOLUBLE ZIRCONIUM COMPOUND, AND A CARRIER CATION, COPRECIPITATING SAID ZIRCONIUM, CERIC AND CARRIER IONS, AND REMOVING THE MIXED PRECIPITATE FORMED, THE QUANTITY OF SAID CERIUM AND ZIRCONIUM PRECIPITATES BEING BETWEEN 0.05 AND 2.5 GRAMS. PER LITER OF SOLUTION.
References Cited (Backward Citations)
US2785951A
Cited
US2823978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |