Patent US3157580A successfully refreshed from Google Patents.
US3157580A
Expired / Lapsed
US
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Fuel elements for nuclear reactors
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1961-01-16
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Granted: 1964-11-17
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Expires: 1981-01-16
Abstract
No abstract record available.
Inventors
- 👤 Williams Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:52
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/02; G21C3/04; G21C3/16; G21C3/18; G21C17/00; G21C17/02; G21C17/04; G21C17/048; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A FUEL ELEMENT COMPRISING A NUCLEAR FUEL MEMBER ENCLOSED IN A PROTECTIVE SHEATH AND HAVING A CAPSULE CONTAINING RADIOACTIVE GAS DISPOSED WITHIN THE FUEL MEMBER, SAID CAPSULE BEING MADE OF A MAGNESIUM ALLOY HAVING A MELTING TEMPERATURE BELOW THE SAFE WORKING TEMPERATURE OF THE FUEL MEMBER.
Claim 2
Dependent Claim
46 words
A FUEL ELEMENT COMPRISING A NUCLEAR FUEL MEMBER ENCLOSED IN A PROTECTIVE SHEATH AND HAVING A CAPSULE CONTAINING RADIOACTIVE GAS DISPOSED WITHIN THE FUEL MEMBER, SAID CAPSULE BEING MADE OF A MAGNESIUM ALLOY HAVING A MELTING TEMPERATURE BELOW THE SAFE WORKING TEMPERATURE OF THE FUEL MEMBER.
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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |