Patent US3694313A successfully refreshed from Google Patents.
US3694313A
Expired / Lapsed
US
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Production of high purity 123i
Assignee: National Aeronautics and Space Administration
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Filing: 1969-10-02
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Granted: 1972-09-26
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Expires: 1989-10-02
Abstract
Abstract BOMBARDING A TELLURIUM TARGET WITH A BEAM FROM AN ACCELERATOR PRODUCES 123XE WHICH IS CARRIED AWAY BY A FLOWING GAS STREAM. CONTAMINANTS ARE REMOVED FROM THE GAS, AND THE REMAINING XENON DECAYS TO 123I WHICH IS READY FOR USE AS A RADIOPHARMACEUTICAL IN WHICH LOW RADIATION EXPOSURE IS DESIRED AS IN DIAGNOSTIC STUDIES.
Inventors
- 👤 James W Blue
- 👤 Wayne R Smith
- 👤 Vincent J Sodd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:58
CPC Classifications
G; G21; G21G; G21G1/00; G21G1/04; G21G1/10
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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |