US3147191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear reactor fuel
Assignee: General Electric Co
•
Filing: 1961-01-25
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Granted: 1964-09-01
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Expires: 1981-01-25
Abstract
No abstract record available.
Inventors
- 👤 Russell L Crowther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:00
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/30; G21C1/00; G21C1/04; G21C1/06; G21C1/08; G21C7/00; G21C7/005; G21D; G21D5/00; G21D5/04; G21D5/06; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S376/00; Y10S376/90; Y10S376/901; Y10S376/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN A DEVICE WHICH COMPRISES A FIRST FUEL MATERIAL INITIALLY CONTAINING U238 AND A THERMAL NEUTRON FISSIONABLE MATERIAL, AND WHICH UPON IRRADIATION BY NEUTRONS OF THERMAL ENERGY SPECTRUM IS SUBJECT TO A NON-UNIFORM THERMAL NEUTRON FLUX DISTRIBUTIONINCLUDING LOCAL REGIONS OF RELATIVELY HIGH THERMAL NEUTRON FLUX TO WHICH A PORTION OF SAID DEVICE IS EXPOSED, THE IMPROVEMENT WHICH COMPRISES A SECOND FUEL MATERIAL DISPOSED IN SAID DEVICE IN SAID LOCAL REGION OF RELATIVELY HIGH THERMAL NEUTRON FLUX, SAID SECOND FUEL MATERIAL INITIALLY CONTAINING TH232 AND A THERMAL NEUTRON FISSIONABLE MATERIAL, AND HAVING A VALUE OF MACROSCOPIC THERMAL NEUTRON ABSORPTION CROSS SHECTION $A INITIALLY NO LESS THAN THAT OF SAID FIRST FUEL MATERIAL.
Claim 2
Dependent Claim
111 words
IN A DEVICE WHICH COMPRISES A FIRST FUEL MATERIAL INITIALLY CONTAINING U238 AND A THERMAL NEUTRON FISSIONABLE MATERIAL, AND WHICH UPON IRRADIATION BY NEUTRONS OF THERMAL ENERGY SPECTRUM IS SUBJECT TO A NON-UNIFORM THERMAL NEUTRON FLUX DISTRIBUTIONINCLUDING LOCAL REGIONS OF RELATIVELY HIGH THERMAL NEUTRON FLUX TO WHICH A PORTION OF SAID DEVICE IS EXPOSED, THE IMPROVEMENT WHICH COMPRISES A SECOND FUEL MATERIAL DISPOSED IN SAID DEVICE IN SAID LOCAL REGION OF RELATIVELY HIGH THERMAL NEUTRON FLUX, SAID SECOND FUEL MATERIAL INITIALLY CONTAINING TH232 AND A THERMAL NEUTRON FISSIONABLE MATERIAL, AND HAVING A VALUE OF MACROSCOPIC THERMAL NEUTRON ABSORPTION CROSS SHECTION $A INITIALLY NO LESS THAN THAT OF SAID FIRST FUEL MATERIAL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |