US2906618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for production of uranium
Assignee: Individual
•
Filing: 1944-02-18
•
Granted: 1959-09-29
•
Expires: 1964-02-18
Abstract
No abstract record available.
Inventors
- 👤 Crawford John William Croom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:33
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0213
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
AN IMPROVED PROCESS FOR THE PRODUCTION OF ARANIUM BY THE AUTOTHERMIC REDUCTION OF AN ANHYDROUS ARANIUM HALIDE WITH AN ALKALINE EARTH METAL(INCLUDING MAGNESIUM), WHICH COMPRISES INITIATING THE REACTION OF A MIXTURE OF SAID HALIDE AND AN EXCESS OF SAID ALKALINE EARTH METAL CONTAINED IN AN OPEN-TOPPED REACTION VESSEL BY LOCALLY HEATING A PART OF SAID MIXTURE TO REACTION TEMPERATURE, SAID VESSEL HAVING IN CONTACT WITH THE SAID MIXTURE A LINING OF SUBSTANTIAL THICKNESS COMPOSED OF CALCIUM FLUORIDE.
Claim 2
Dependent Claim
77 words
AN IMPROVED PROCESS FOR THE PRODUCTION OF ARANIUM BY THE AUTOTHERMIC REDUCTION OF AN ANHYDROUS ARANIUM HALIDE WITH AN ALKALINE EARTH METAL(INCLUDING MAGNESIUM), WHICH COMPRISES INITIATING THE REACTION OF A MIXTURE OF SAID HALIDE AND AN EXCESS OF SAID ALKALINE EARTH METAL CONTAINED IN AN OPEN-TOPPED REACTION VESSEL BY LOCALLY HEATING A PART OF SAID MIXTURE TO REACTION TEMPERATURE, SAID VESSEL HAVING IN CONTACT WITH THE SAID MIXTURE A LINING OF SUBSTANTIAL THICKNESS COMPOSED OF CALCIUM FLUORIDE.
References Cited (Backward Citations)
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US1568685A
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Cited
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Cited
US2206277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |