US3234099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing a gamma radiation material
Assignee: General Electric Co
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Filing: 1963-02-06
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Granted: 1966-02-08
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Expires: 1983-02-06
Abstract
No abstract record available.
Inventors
- 👤 George C Baldwin
- 👤 John P Neissel
- 👤 Tonks Lewi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:21
CPC Classifications
G; G21; G21G; G21G1/00; G21G1/02; G21G4/00; G21G4/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A METHOD FOR PREPARING A GAMMA RADIATION MATERIAL COMPRISING THE STEPS OF SELECTING A RELATIVELY STABLE TARGET ISOTOPE MATERIAL CHARACTERIZED BY A RELATIVELY LARGE CROSS SECTION FOR PRODUCING AN UPPER ISOMERIC STATE OF A DESIRED ISOTOPE, CHEMICALLY COMBINING THE TARGET ISOTOPE TO FORM A PARTICULAR CHEMICAL COMPOUND HAVING COVALENT BINDING, IRRADIATING THE TARGET ISOTOPE COMPOUND WITH NEUTRON PARTICLES THEREBY RUPTURING THE CHEMICAL BOND TO FORM SUBSTANCES INCLUDING THE DESIRED ISOTOPE WHEREIN A HIGH CONCENTRATION OF THE UPPER ISOMERIC STATE MAY BE ACHIEVED AND HAVING A RESONANCE CROSS SECTION GREATER THAN ITS NONRESONNANT ABSORPTION CROSS SECTION FOR GAMMA RADIATION EMITTED IN TRANSITIONS BETWEEN THE UPPER AND LOWER ISOMERIC STATES, ISOLATING THE DESIRED ISOTOPE FROM THE REMAINING SUBSTANCES TO OBTAIN A HIGHLY CONCENTRATED FORM OF THE DESIRED ISOTOPE, AND GROWING A WHISKER SHAPE SINGLE CRYSTALLINE SOLID STRUCTURE FROM THE CONCENTRATED DESIRED ISOTOPE WHEREIN
Claim 2
Independent Claim
141 words
A METHOD FOR PREPARING A GAMMA RADIATION MATERIAL COMPRISING THE STEPS OF SELECTING A RELATIVELY STABLE TARGET ISOTOPE MATERIAL CHARACTERIZED BY A RELATIVELY LARGE CROSS SECTION FOR PRODUCING AN UPPER ISOMERIC STATE OF A DESIRED ISOTOPE, CHEMICALLY COMBINING THE TARGET ISOTOPE TO FORM A PARTICULAR CHEMICAL COMPOUND HAVING COVALENT BINDING, IRRADIATING THE TARGET ISOTOPE COMPOUND WITH NEUTRON PARTICLES THEREBY RUPTURING THE CHEMICAL BOND TO FORM SUBSTANCES INCLUDING THE DESIRED ISOTOPE WHEREIN A HIGH CONCENTRATION OF THE UPPER ISOMERIC STATE MAY BE ACHIEVED AND HAVING A RESONANCE CROSS SECTION GREATER THAN ITS NONRESONNANT ABSORPTION CROSS SECTION FOR GAMMA RADIATION EMITTED IN TRANSITIONS BETWEEN THE UPPER AND LOWER ISOMERIC STATES, ISOLATING THE DESIRED ISOTOPE FROM THE REMAINING SUBSTANCES TO OBTAIN A HIGHLY CONCENTRATED FORM OF THE DESIRED ISOTOPE, AND GROWING A WHISKER SHAPE SINGLE CRYSTALLINE SOLID STRUCTURE FROM THE CONCENTRATED DESIRED ISOTOPE WHEREIN
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |