US3573036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing stoichiometric uranium dioxide compositions
Assignee: United States Atomic Energy Commission
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Filing: 1966-11-15
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Granted: 1971-03-30
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Expires: 1986-11-15
Abstract
Abstract THIS INVENTION RELATES TO A METHOD OF FABRICATING A NUCLEAR FUEL ELEMENT WHICH COMPRISES FORMING A BODY OF URANIUM DIOXIDE IN A MATRIX SELECTED FROM REFRACTORY METAL OR REFRACTORY METAL ALLOY, SINTERING SAID BODY IN A NON-OXIDIZING ATMOSPHERE TO A DESIRED DENSITY AT A TEMPERATURE ABOVE 1700*C., THEREBY PRODUCING HYPOSTOICHIOMETRIC URANIA, AND CONTACTING THE RESULTING CERMET WITH WET HYDROGEN AT A TEMPERATURE IN THE RANGE 1000* C.-1500*C. UNTIL SUBSTANTIAL STOICHIOMETRY HAS BEEN ATTAINED.
Inventors
- 👤 Norman P Fairbanks
- 👤 James A Mcgurty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:01
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/42; G21C3/58; G21C3/62; G21C3/64; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |