US2870073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of the refractory metals by fused salt electrolysis
Assignee: Horizons Titanium Corp
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Filing: 1955-11-08
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Granted: 1959-01-20
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Expires: 1975-11-08
Abstract
No abstract record available.
Inventors
- 👤 Merlub-Sobel Menahem
- 👤 Milton J Arnoff
- 👤 Jack L Sorkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:22
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/32; C25C3/26; C25C3/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
THE PROCESS OF PREPARING AN ANHYDROUS CHLORIDE OF A METAL OF THE GROUP CONSISTING OF VANADIUM, NIOBIUM, TANTALUM, ZIRCONIUM, HAFNUIM, CHROMIUM, MOLYBDENUM AND TUNGSTEN, WHICH COMPRISES: PREPARING A FUSED SALT MELT CONSISTING OF AT LEAST ONE ALKALI METAL HALIDE, ADDING TO THE MELT A COMPOUND OF SAID METAL SELECTED FROM THE OXYGEN CONTAINING COMPOUNDS OF SAID METAL WHICH DECOMPOSE TO YIELD AN OXIDE OF SAID METAL IN SAID MELT, AND CHLORINATING SAID FRESHLY FORMED METAL OXIDE CONTAINED IN THE RESULTING MELT BY ADMITTING AN EXTERNALLY PRODUCED CHLORINATING AGENT INTO THE MELT WHERIN IT CONVERTS THE FRESHLY FORMED OXIDE INTO AN ANHYDROUS CHLORIDE OF THE METAL.
Claim 2
Dependent Claim
105 words
THE PROCESS OF PREPARING AN ANHYDROUS CHLORIDE OF A METAL OF THE GROUP CONSISTING OF VANADIUM, NIOBIUM, TANTALUM, ZIRCONIUM, HAFNUIM, CHROMIUM, MOLYBDENUM AND TUNGSTEN, WHICH COMPRISES: PREPARING A FUSED SALT MELT CONSISTING OF AT LEAST ONE ALKALI METAL HALIDE, ADDING TO THE MELT A COMPOUND OF SAID METAL SELECTED FROM THE OXYGEN CONTAINING COMPOUNDS OF SAID METAL WHICH DECOMPOSE TO YIELD AN OXIDE OF SAID METAL IN SAID MELT, AND CHLORINATING SAID FRESHLY FORMED METAL OXIDE CONTAINED IN THE RESULTING MELT BY ADMITTING AN EXTERNALLY PRODUCED CHLORINATING AGENT INTO THE MELT WHERIN IT CONVERTS THE FRESHLY FORMED OXIDE INTO AN ANHYDROUS CHLORIDE OF THE METAL.
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) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |