US3129140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel elements for nuclear reactors
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1959-08-17
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Granted: 1964-04-14
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Expires: 1979-08-17
Abstract
No abstract record available.
Inventors
- 👤 Stohr Jacques-Andre
- 👤 Gauthron Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:06
CPC Classifications
G; G21; G21C; G21C21/00; G21C21/02; G21C21/12; G21C3/00; G21C3/02; G21C3/04; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
IN A FUEL ELEMENT FOR A NUCLEAR REACTOR, A PLURALITY OF RINGS OF CERAMIC FUEL ALIGNED AND SPACED ALONG THEIR LONGITUDINAL AXES, AN EXTERIOR THIN METAL SHEATH SURROUNDING AND IN INTIMATE CONTACT WITH THE EXTERIOR SURFACES OF SAID RINGS, AN INTERIOR THIN METAL SHEATH ENGAGING
Claim 2
Dependent Claim
45 words
IN A FUEL ELEMENT FOR A NUCLEAR REACTOR, A PLURALITY OF RINGS OF CERAMIC FUEL ALIGNED AND SPACED ALONG THEIR LONGITUDINAL AXES, AN EXTERIOR THIN METAL SHEATH SURROUNDING AND IN INTIMATE CONTACT WITH THE EXTERIOR SURFACES OF SAID RINGS, AN INTERIOR THIN METAL SHEATH ENGAGING
References Cited (Backward Citations)
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Cited
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Cited
GB789257A
Cited
US3030291A
Cited
US3004906A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |