US2827405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of desheathing of uranium fuel rods
Assignee: Atomic Energy of Canada Ltd AECL
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Filing: 1956-05-09
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Granted: 1958-03-18
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Expires: 1976-05-09
Abstract
No abstract record available.
Inventors
- 👤 Robert J Evans
- 👤 Richard F Bader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:26
CPC Classifications
G; G21; G21C; G21C19/00; G21C19/34; G21C19/38; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49815; Y10T29/49821
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A METHOD OF DESHEATHING URANIUM FUEL RODS SHEATHED IN ZIRCONIUM OR AN ALLOY OF IT WHICH COMPRISES SCORING THE SHEATH TO EXPOSE THE URANIUM CORE, TREATING THE FUEL ROD WITH STEAM AT A TEMPERATURE NOT SUBSTANTIALLY LESS THAN 250*C. TO OXIDIZE THE URANIUM AND CONTINUING THE STEAM TREATMENT UNTIL THE SHEATH HAS BEEN FREED FROM THE URANIUM CORE.
Claim 2
Independent Claim
58 words
A METHOD OF DESHEATHING URANIUM FUEL RODS SHEATHED IN ZIRCONIUM OR AN ALLOY OF IT WHICH COMPRISES SCORING THE SHEATH TO EXPOSE THE URANIUM CORE, TREATING THE FUEL ROD WITH STEAM AT A TEMPERATURE NOT SUBSTANTIALLY LESS THAN 250*C. TO OXIDIZE THE URANIUM AND CONTINUING THE STEAM TREATMENT UNTIL THE SHEATH HAS BEEN FREED FROM THE URANIUM CORE.
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) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |