US2813019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing zirconium metal
Assignee: EIDP Inc
•
Filing: 1951-10-12
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Granted: 1957-11-12
•
Expires: 1971-10-12
Abstract
No abstract record available.
Inventors
- 👤 Olson Carl Marcus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:55
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS FOR THE PRODUCTION OF PURE DUCTILE ZIRCONIUM METAL THROUGH REDUCTION OF A ZIRCONIUM HALIDE WITH AN ACTIVE REDUCING METAL THEREFOR WHICH COMPRISES PRIOR TO SAID REDUCTION REMOVING CONTAMINATING IMPURITIES FROM SAID ACTIVE REDUCING METAL SELECTED FROM THE GROUPS CONSISTING OF ALKALI AND ALKALINE EARTH METALS AND ALLOYS THEREOF BY SUBJECTING IT WHILE IN THE MOLTEN STATE UNDER AN INERT ATMOSPHERE TO DIRECT CONTACT WITH PARTICLES OF ZIRCONIUM METAL FOR PERIOD OF TIME SUFFICIENT TO EFFECT SCAGENGING OF SAID IMPURITIES BY SAID ZIRCONIUM METAL PARTICLES.
Claim 2
Dependent Claim
86 words
A PROCESS FOR THE PRODUCTION OF PURE DUCTILE ZIRCONIUM METAL THROUGH REDUCTION OF A ZIRCONIUM HALIDE WITH AN ACTIVE REDUCING METAL THEREFOR WHICH COMPRISES PRIOR TO SAID REDUCTION REMOVING CONTAMINATING IMPURITIES FROM SAID ACTIVE REDUCING METAL SELECTED FROM THE GROUPS CONSISTING OF ALKALI AND ALKALINE EARTH METALS AND ALLOYS THEREOF BY SUBJECTING IT WHILE IN THE MOLTEN STATE UNDER AN INERT ATMOSPHERE TO DIRECT CONTACT WITH PARTICLES OF ZIRCONIUM METAL FOR PERIOD OF TIME SUFFICIENT TO EFFECT SCAGENGING OF SAID IMPURITIES BY SAID ZIRCONIUM METAL PARTICLES.
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |