US2659655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of fluoride-free uranium oxide
Assignee: Union Carbide Corp
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Filing: 1949-03-12
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Granted: 1953-11-17
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Expires: 1969-03-12
Abstract
No abstract record available.
Inventors
- 👤 Roger G Sweet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:10
CPC Classifications
C; C01; C01G; C01G43/00; C01G43/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
PROCESS FOR OBTAINING URANO-URANIC OXIDE WHICH COMPRISES FORMING A CONCENTRATED AQUEOUS SOLUTION OF URANIUM OXYFLUORIDE, ADDING ONE OF THE GROUP CONSISTING OF AMMONIUM FLUORIDE AND AMMONIUM ACID FLUORIDE TO SAID SOLUTION IN AN AMOUNT IN EXCESS OF THREE MOLES PER MOLE OF URANIUM OXYFLUORIDE PRESENT IN SAID SOLUTION, FORMING A GRANULAR, EASILY FILTERED PRECIPITATE OF THE DOUBLE FLUORIDE SALT (3NF4.FUO2F2), SAID PRECIPITATE CONTAINING AT LEAST 99.5% OF THE URANIUM ORIGINALLY PRESENT AS URANIUM OXYFLUORIDE IN SAID SOLUTION SEPARATING SAID PRECIPITATE AND CALCINING IT IN THE PRESENCE OF STREAM TO FORM UNANOURANIC OXIDE SUBSTANTIALLY FREE OF FLUORIDES.
Claim 2
Dependent Claim
96 words
PROCESS FOR OBTAINING URANO-URANIC OXIDE WHICH COMPRISES FORMING A CONCENTRATED AQUEOUS SOLUTION OF URANIUM OXYFLUORIDE, ADDING ONE OF THE GROUP CONSISTING OF AMMONIUM FLUORIDE AND AMMONIUM ACID FLUORIDE TO SAID SOLUTION IN AN AMOUNT IN EXCESS OF THREE MOLES PER MOLE OF URANIUM OXYFLUORIDE PRESENT IN SAID SOLUTION, FORMING A GRANULAR, EASILY FILTERED PRECIPITATE OF THE DOUBLE FLUORIDE SALT (3NF4.FUO2F2), SAID PRECIPITATE CONTAINING AT LEAST 99.5% OF THE URANIUM ORIGINALLY PRESENT AS URANIUM OXYFLUORIDE IN SAID SOLUTION SEPARATING SAID PRECIPITATE AND CALCINING IT IN THE PRESENCE OF STREAM TO FORM UNANOURANIC OXIDE SUBSTANTIALLY FREE OF FLUORIDES.
References Cited (Backward Citations)
US2339685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |