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Patent US3561932A successfully refreshed from Google Patents.
US3561932A
Expired / Lapsed
US
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Indium generator
Assignee: EIDP Inc
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Filing: 1967-01-26
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Granted: 1971-02-09
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Expires: 1987-01-26
Abstract
Abstract A GENERATOR OF A DAUGHTER RADIONUCLIDE, PARTICULARLY RADIOACTIVE INDIUM (IN113M), AND A METHOD OF LOADING A PARTICULATE SUBSTRATE OF THE GENERATOR WITH A PARENT RADIONUCLIDE. THE DAUGHTER RADIONUCLIDE, WHICH RESULTS FROM THE RADIOACTIVE DECAY OF ITS PARENT, IS SELECTIVELY EXTRACTED FROM THE SUBSTRATE BY A MINERAL ACID SOOLVENT (ELUANT), SUCH AS HYDROCHLORIC ACID (HC1) AT A CONCENTRATION LESS THAN ONE-TENTH NORMAL (0.1 N).
Inventors
- 👤 Irwin J Gruverman
- 👤 Gregory G Rocco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:08
CPC Classifications
G; G21; G21G; G21G1/00; G21G1/0005; C; C01; C01G; C01G15/00; G21G1/001; G21G2001/0057
Claims Analysis
Total Claims: 0
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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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |