US2831122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation sources
Assignee: Individual
•
Filing: 1955-11-09
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Granted: 1958-04-15
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Expires: 1975-11-09
Abstract
No abstract record available.
Inventors
- 👤 Marshall H Brucer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:57
CPC Classifications
G; G21; G21G; G21G4/00; G21G4/04; G21G4/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
75 words
A MOCK IODINE-131 SOURCE WHICH COMPRISES A MIXTURE OF BAFIUM-133 AND CESIUM-137, WHEREIN THE BARIUM AND CESIUM ARE PRESENT IN A BARIUM-CESIUM RATIO OF APPROXIMATELY 10.7/1, UNIFORMLY DISPERSED IN AN ION EXCHANGE RESIN, AND A CONTAINER DISPOSED ABOUT SAID MIXTURE AND SAID RESIN, SAID CONTAINER BEING FABRICATED FROM A MATERIAL OF ATOMIC NUMBER BELOW SUBSTANTIALLY 51 AND 0.7-0.9 MILLIMETER THICK, SAID CONTAINER CONFORMING SUBSTANTIALLY TO THE CONTOUR OF THE THYROID GLAND OF THE HUMAN BODY.
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) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |