Patent US3445201A successfully refreshed from Google Patents.
US3445201A
Expired / Lapsed
US
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Ion exchange process for recovering americium and curium
Assignee: United States Atomic Energy Commission
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Filing: 1968-03-27
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Granted: 1969-05-20
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Expires: 1988-03-27
Abstract
No abstract record available.
Inventors
- 👤 Earl J Wheelwright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:51
CPC Classifications
C; C01; C01G; C01G99/00; C01G99/006; C01G56/00; C01G56/001; C01G56/002; C22; C22B; C22B3/00; C22B3/20; C22B3/42; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3192012A
Cited
US3161463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |