US3235327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of uranium dioxide
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1962-01-19
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Granted: 1966-02-15
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Expires: 1982-01-19
Abstract
No abstract record available.
Inventors
- 👤 Blundell Anthony
- 👤 Brooks Lionel Hepworth
- 👤 Clarke John Colin
- 👤 Gillies George Marshall
- 👤 Saum Christopher John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:56
CPC Classifications
C; C01; C01G; C01G43/00; C01G43/04; C01G43/01; C01G43/025; C01P; C01P2006/00; C01P2006/11; C01P2006/12; C01P2006/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A METHOD OF MANUFACTURING URANIUM DIOXIDE COMPRISING CONVERTING URANIUM HEXAFLUORIDE TO URANYL FLUORIDE USING STEAM AT A TEMPERATURE OF AT LEAST 130*C. IN THE PRESENCE OF A CONTINUOUS FLOW OF A GAS INERT TO THIS CONVERSION, THE URANYL FLUORIDE BEING PRODUCED IN POWDER FROM HAVING A SURFACE AREA IN THE RANGE OF 3 TO 12 METRS2/GM., AND SUBSEQUENTLY CONVERTING THE URANYL FLUORIDE TO URANIUM DIOXIDE USING HYDROGEN AND STEAM AT A TEMPERATURE OF 550 TO 600*C. AND AT A HYDROGEN TO STEAM VOLUME RATIO OF AT LEAST TWO TO ONE.
Claim 2
Independent Claim
90 words
A METHOD OF MANUFACTURING URANIUM DIOXIDE COMPRISING CONVERTING URANIUM HEXAFLUORIDE TO URANYL FLUORIDE USING STEAM AT A TEMPERATURE OF AT LEAST 130*C. IN THE PRESENCE OF A CONTINUOUS FLOW OF A GAS INERT TO THIS CONVERSION, THE URANYL FLUORIDE BEING PRODUCED IN POWDER FROM HAVING A SURFACE AREA IN THE RANGE OF 3 TO 12 METRS2/GM., AND SUBSEQUENTLY CONVERTING THE URANYL FLUORIDE TO URANIUM DIOXIDE USING HYDROGEN AND STEAM AT A TEMPERATURE OF 550 TO 600*C. AND AT A HYDROGEN TO STEAM VOLUME RATIO OF AT LEAST TWO TO ONE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |