Treatment of iron based melts with agents containing alkaline earths by gas injection
CA 1104829 A · Owner: Skw Frostberg Aktiengesellschaft · Inventors: Roeck, Heinrich; Freissmuth, Alfred; Kniep, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The process of desulfurization and/or deoxidation of iron based melts at 1200° - 1750°C by the pneumatic injection of carbide and/or metallic alkaline earth carriers, characterized in that a gas which reacts exothermically with these compounds or alloys and is completely consumable, in this connection is used as the pneumatic injection gas.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 14, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.