US3755547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacturing of vanadium chlorides
Assignee: Individual
•
Filing: 1970-10-01
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Granted: 1973-08-28
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Expires: 1990-10-01
Abstract
Abstract IMPROVEMENTS IN THE PRODUCTION OF VANADIUM CHLORIDES AND/OR OXYCHLORIDES BY THE REDUCTIVE CHLORINATION OF VANADIUM OXIDES WITH CHLORINE IN THE PRESENCE OF CARBON AT ELEVATED TEMPERATURES BY CARRYING OUT THE PROCESS IN A TUBE REACTOR, THE WALLS OF WHICH ARE LINED WITH THE PRODUCT PRODUCED BY FLAME-HARDENING OR BAKING TO 800 TO 1000* C. A MIXTURE OF CORUNDUM AND AS A BINDER THE WATER HYDROLYSIS PRODUCT OF SILICON AND ALUMINUM ALCOHOLATES MADE BY THE PROCESS DISCLOSED IN PUBLISHED GERMAN PAT. 1,286,038.
Inventors
- 👤 F Langenhoff
- 👤 E Termin
- 👤 A Lenz
- 👤 G Schinke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:39
CPC Classifications
C; C01; C01G; C01G31/00; C01G31/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |