Patent US3168369A successfully refreshed from Google Patents.
US3168369A
Expired / Lapsed
US
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Uranium processing
Assignee: WR Grace and Co
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Filing: 1961-12-18
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Granted: 1965-02-02
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Expires: 1981-12-18
Abstract
No abstract record available.
Inventors
- 👤 Stanton L Reese
- 👤 Thomas C Runion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:30
CPC Classifications
C; C01; C01G; C01G43/00; C01G43/01; C01G43/025; C01G43/04; C01G43/06; C01P; C01P2004/00; C01P2004/60; C01P2004/61; C01P2004/62; C01P2006/00; C01P2006/11; C01P2006/14; C01P2006/60; C01P2006/80
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
74 words
A PROCESS FOR THE PREPARATION OF URANIUM TRIOXIDE WHICH COMPRISES CONVERTING GASEOUS URANIUM HEXAFLUORIDE TO URANYL FLUORIDE BY TREATING THE HEXAFLUORIDE WITH STEAM AT A TEMPERATURE OF ABOUT 230* TO 350*F. AT ATMOSPHERIC PRESSURE FOLLOWED BY CONVERSION OF THE URANYL FLUORIDE TO URANYL OXIDE BY TREATMENT OF THE FLUORIDE AT A TEMPERATURE ABOUT 800* TO 1000*F. IN THE PRESENCE OF STEAM WHILE CAREFULLY EXCLUDING AIR FROM THE REACTOR AND RECOVERING THE URANIUM TRIOXIDE PRODUCT.
Claim 2
Dependent Claim
74 words
A PROCESS FOR THE PREPARATION OF URANIUM TRIOXIDE WHICH COMPRISES CONVERTING GASEOUS URANIUM HEXAFLUORIDE TO URANYL FLUORIDE BY TREATING THE HEXAFLUORIDE WITH STEAM AT A TEMPERATURE OF ABOUT 230* TO 350*F. AT ATMOSPHERIC PRESSURE FOLLOWED BY CONVERSION OF THE URANYL FLUORIDE TO URANYL OXIDE BY TREATMENT OF THE FLUORIDE AT A TEMPERATURE ABOUT 800* TO 1000*F. IN THE PRESENCE OF STEAM WHILE CAREFULLY EXCLUDING AIR FROM THE REACTOR AND RECOVERING THE URANIUM TRIOXIDE PRODUCT.
Claim 3
Dependent Claim
37 words
A PROCESS FOR PREPARING URANIUM DIOXIDE WITH AN AVERAGE PARTICLE DIAMETER OF 0.55 TO 2.5 MICRONS AND A BULK DENSITY OF 0.65 TO 1.5 GRAMS PER CC. WHICH COMPRISES TREATING GASEOUS URANIUM HEXAFLUOIDE WITH STEAM AT A
Claim 4
Dependent Claim
37 words
A PROCESS FOR PREPARING URANIUM DIOXIDE WITH AN AVERAGE PARTICLE DIAMETER OF 0.55 TO 2.5 MICRONS AND A BULK DENSITY OF 0.65 TO 1.5 GRAMS PER CC. WHICH COMPRISES TREATING GASEOUS URANIUM HEXAFLUOIDE WITH STEAM AT A
References Cited (Backward Citations)
US2906598A
Cited
US3051566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |