Patent US3704202A successfully refreshed from Google Patents.
US3704202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel element for high temperature nuclear reactor
Assignee: Australian Atomic Energy Commission
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Filing: 1970-05-05
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Granted: 1972-11-28
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Expires: 1990-05-05
Abstract
Abstract A SUBSTANTIALLY SPHERICAL FUEL ELEMENTS FOR NUCLEAR REACTORS COMPRISES A CORE CONTAINING A FINELY DIVIDED SOLID SOLUTION OF FUEL DISPERSED IN A FINE GRAINED BERYLLIA MATRIX, A DENSE OUTER SHELL OF FINE GRAINED BERYLLIA, A BUFFER ZONE OF POROUS BERYLLIA BETWEEN SAID CORE AND SAID SHELL, A DENSE OUTER COATING OF ALUMINA ON SAID OUTER SHELL AND A THIN LAYER OF CRYSOBERYL AS A BOND BETWEEN THE ALUMINA COATING AND SAID SHELL.
Inventors
- 👤 Keith Desmond Reeve
- 👤 Eric John Ramm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:34
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/42; G21C3/58; G21C3/62; G21C3/623; G21C21/00; G21C21/02; Y; Y02; Y02E; Y02E30/00; Y02E30/30
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) | 1975-11-28 | 1976-05-29 | 1976-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-28 | 1980-05-29 | 1980-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-28 | 1984-05-29 | 1984-11-28 | $7700.00 | Window Closed / Lapsed |