Patent US2942969A successfully refreshed from Google Patents.
US2942969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing zirconium metal
Assignee: NL Industries Inc
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Filing: 1956-07-19
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Granted: 1960-06-28
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Expires: 1976-07-19
Abstract
No abstract record available.
Inventors
- 👤 George W Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:53
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A CONTINUOUS PROCESS FOR PRODUCING A ZIROCONIUM METAL COMPACT WHICH COMPRISES PROVIDING A REACTION BATH OF MOLTEN SALTS, FEEDING SODIUM AND MAGNESIUM METALS INTO SAID MOLTEN SALT BATH TO PROVIDE A MIXTURE OF REDUCING METALS IN SAID BATH DURING REACTION IN A RATIO OF FROM 1.25 TO 7 PARTS SODIUM TO 1 PART MAGNESIUM, FEEDING ZIRCONIUM TETRACHLORIDE CONTINUOUSLY INTO SAID MOLTEN SALT BATH AND REACTING SAID ZIRCONIUM TETRACHLORIDE WITH SAID REDUCING METAL TO FORM PARTICLES OF ZIRCONIUM METAL IN SAID BATH, CONSOLIDATING THE PARTICLES OF ZIRCONIUM METAL IN SAID BATH TO PRODUCE A RELATIVELY DENSE ZIRCONIUM METAL COMPACT AND RECOVERING SAID ZIRCONIUM METAL COMPACT FROM SAID BATH BY APPLYING PRESSURE THERETO AND EXPELLING SAID ZIROCONIUM METAL COMPACT FROM SAID BATH.
Claim 2
Dependent Claim
120 words
A CONTINUOUS PROCESS FOR PRODUCING A ZIROCONIUM METAL COMPACT WHICH COMPRISES PROVIDING A REACTION BATH OF MOLTEN SALTS, FEEDING SODIUM AND MAGNESIUM METALS INTO SAID MOLTEN SALT BATH TO PROVIDE A MIXTURE OF REDUCING METALS IN SAID BATH DURING REACTION IN A RATIO OF FROM 1.25 TO 7 PARTS SODIUM TO 1 PART MAGNESIUM, FEEDING ZIRCONIUM TETRACHLORIDE CONTINUOUSLY INTO SAID MOLTEN SALT BATH AND REACTING SAID ZIRCONIUM TETRACHLORIDE WITH SAID REDUCING METAL TO FORM PARTICLES OF ZIRCONIUM METAL IN SAID BATH, CONSOLIDATING THE PARTICLES OF ZIRCONIUM METAL IN SAID BATH TO PRODUCE A RELATIVELY DENSE ZIRCONIUM METAL COMPACT AND RECOVERING SAID ZIRCONIUM METAL COMPACT FROM SAID BATH BY APPLYING PRESSURE THERETO AND EXPELLING SAID ZIROCONIUM METAL COMPACT FROM SAID BATH.
References Cited (Backward Citations)
US1312262A
Cited
US2205854A
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US2171439A
Cited
US2613304A
Cited
US2676882A
Cited
US2707679A
Cited
US2826492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |