US2840466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of reducing metal chlorides
Assignee: St. Joseph's Hospital and Medical Center
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Filing: 1954-10-29
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Granted: 1958-06-24
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Expires: 1974-10-29
Abstract
No abstract record available.
Inventors
- 👤 Herand K Najarian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:54
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; Y; Y10; Y10S; Y10S266/00; Y10S266/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A METHOD OF PRODUCING A REFRACTORY METAL OF THE GROUP CONSISTING OF TITANIUM AND ZIRCONIUM WHICH COMPRISES MAINTAINING A STREAM OF MOLTEN MAGNESIUM CHLORIDE AT A TEMPERATURE INTERMEDIATE THE MELTING POINT OF MAGNESIUM AND THE BOILING POINT OF MAGNESIUM IN CONTINUOUS CIRCULATION IN AN INCLINED UPWARD CURRENT FROM A LOWER BODY OF MAGNESIUM CHLORIDE TO AN UPPER BODY OF MAGNESIUM CHLORIDE HAVING A FREE SURFACE AND IN A DOWNWARD CURRENT FROM SAID UPPER BODY TO SAID LOWER BODY, INTRODUCING INTO THE LOWER PORTION OF THE INCLINED UPWARD CURRENT MOLTEN MAGNESIUM AND A REFRACTORY METAL CHLORIDE OF THE GROUP CONSISTING OF TITANIUM TETRACHLORIDE AND ZIRCONIUM TETRACHLORIDE IN THE PROPORTION OF AT LEAST TWO ATOMS OF MAGNESIUM TO EACH MOLECULE OF THE REFRACTORY METAL CHLORIDE, AND WITHDRAWING FROM THE LOWER PORTION OF THE LOWER BODY A SUSPENSION OF THE REFRACTORY METAL IN MAGNESIUM CHLORIDE.
Claim 2
Independent Claim
142 words
A METHOD OF PRODUCING A REFRACTORY METAL OF THE GROUP CONSISTING OF TITANIUM AND ZIRCONIUM WHICH COMPRISES MAINTAINING A STREAM OF MOLTEN MAGNESIUM CHLORIDE AT A TEMPERATURE INTERMEDIATE THE MELTING POINT OF MAGNESIUM AND THE BOILING POINT OF MAGNESIUM IN CONTINUOUS CIRCULATION IN AN INCLINED UPWARD CURRENT FROM A LOWER BODY OF MAGNESIUM CHLORIDE TO AN UPPER BODY OF MAGNESIUM CHLORIDE HAVING A FREE SURFACE AND IN A DOWNWARD CURRENT FROM SAID UPPER BODY TO SAID LOWER BODY, INTRODUCING INTO THE LOWER PORTION OF THE INCLINED UPWARD CURRENT MOLTEN MAGNESIUM AND A REFRACTORY METAL CHLORIDE OF THE GROUP CONSISTING OF TITANIUM TETRACHLORIDE AND ZIRCONIUM TETRACHLORIDE IN THE PROPORTION OF AT LEAST TWO ATOMS OF MAGNESIUM TO EACH MOLECULE OF THE REFRACTORY METAL CHLORIDE, AND WITHDRAWING FROM THE LOWER PORTION OF THE LOWER BODY A SUSPENSION OF THE REFRACTORY METAL IN MAGNESIUM CHLORIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |