US3230036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for separating americium and curium from the lanthanide rare earths and yttrium
Assignee: Individual
•
Filing: 1963-09-18
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Granted: 1966-01-18
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Expires: 1983-09-18
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Kappelmann
- 👤 Boyd S Weaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:22
CPC Classifications
C; C22; C22B; C22B59/00; C01; C01F; C01F17/00; C01F17/10; C01F17/17; C01G; C01G56/00; C01G56/001; C22B60/00; C22B60/02; C22B60/0295
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PROCESS FOR SEPARATING AND RECOVERING ACTINIDE VALUES SELECTED FROM THE GROUP CONSISTING OF AMERICIUM AND CURIUM VALUES FROM AN AQUEOUS MIXTURE CONTAINING SAID VALUES TOGETHER WITH FISSION PRODUCT VALUES SELECTED FROM THE GROUP CONSISTING OF YTTRIUM AND LANTHANIDE RARE EARTH VALUES COMPRISING THE STEPS OF: (A) PROVIDING SAID AQUEOUS MIXTURE WITH AN AMINOPOLYCARBOXYLIC ACID AND A WATER-SOLUBLE ORGANIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
63 words
A PROCESS FOR SEPARATING AND RECOVERING ACTINIDE VALUES SELECTED FROM THE GROUP CONSISTING OF AMERICIUM AND CURIUM VALUES FROM AN AQUEOUS MIXTURE CONTAINING SAID VALUES TOGETHER WITH FISSION PRODUCT VALUES SELECTED FROM THE GROUP CONSISTING OF YTTRIUM AND LANTHANIDE RARE EARTH VALUES COMPRISING THE STEPS OF: (A) PROVIDING SAID AQUEOUS MIXTURE WITH AN AMINOPOLYCARBOXYLIC ACID AND A WATER-SOLUBLE ORGANIC ACID HAVING THE FORMULA
References Cited (Backward Citations)
US3125410A
Cited
US3161463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |