Patent US2833641A successfully refreshed from Google Patents.
US2833641A
Expired / Lapsed
US
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Production of lower valent halides
Assignee: Horizons Titanium Corp
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Filing: 1956-05-16
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Granted: 1958-05-06
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Expires: 1976-05-16
Abstract
No abstract record available.
Inventors
- 👤 Wainer Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:04
CPC Classifications
C; C01; C01G; C01G1/00; C01G1/06; C01G25/00; C01G25/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
THE METHOD OF PRODUCING LOWER VALENT HALIDES OF A METAL OF THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, HAFNIUM, VANADIUM, NIOBIUM AND TANTALUM WHICH COMPRISES BRINGING A HIGHER VALENT HALIDE VAPOR OF ONE OF SAID METALS INTO CONTACT WITH A LOWER VALENT SULFIDE OF THE SAME METAL IN THE FORM OF PARTICLES AT LEAST AS FINE AS ABOUT 200 MESH, THE VALENCE OF THE METAL IN THE LOWER VALENT SULFIDE BEING NO HIGHER THAN THE VALENCE OF THE METAL IN THE RESULTING LOWER VALENT HALIDE PRODUCT, AND EFFECTING REACTION BETWEEN SAID METAL HALIDE VAPOR AND METAL SULFIDE BY MAINTAINING THE REACTANTS AT A TEMPERATURE AT LEAST AS HIGH AS THE VOLATIZATION TEMPERATURE OF SAID HIGHER VALENT METAL HALIDE BUT BELOW THA AT WHICH THE RESULTING LOWER VALENT METAL HALIDES DISPROPORTIONATE TO THE METAL ITSELF.
Claim 2
Independent Claim
133 words
THE METHOD OF PRODUCING LOWER VALENT HALIDES OF A METAL OF THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, HAFNIUM, VANADIUM, NIOBIUM AND TANTALUM WHICH COMPRISES BRINGING A HIGHER VALENT HALIDE VAPOR OF ONE OF SAID METALS INTO CONTACT WITH A LOWER VALENT SULFIDE OF THE SAME METAL IN THE FORM OF PARTICLES AT LEAST AS FINE AS ABOUT 200 MESH, THE VALENCE OF THE METAL IN THE LOWER VALENT SULFIDE BEING NO HIGHER THAN THE VALENCE OF THE METAL IN THE RESULTING LOWER VALENT HALIDE PRODUCT, AND EFFECTING REACTION BETWEEN SAID METAL HALIDE VAPOR AND METAL SULFIDE BY MAINTAINING THE REACTANTS AT A TEMPERATURE AT LEAST AS HIGH AS THE VOLATIZATION TEMPERATURE OF SAID HIGHER VALENT METAL HALIDE BUT BELOW THA AT WHICH THE RESULTING LOWER VALENT METAL HALIDES DISPROPORTIONATE TO THE METAL ITSELF.
References Cited (Backward Citations)
US2760857A
Cited
US2670270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |