Method for refining of metal
CA 1053908 A · Owner: Donetsky Nauchno-Issledovatelsky Institut Chernoi Metallurgii · Inventors: Sochnev, Alexandr E.; Ofengenden, Abram M.; Voropaev, Alexandr P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure The herein-proposed method consists in that half of a given amount of fluid slag is poured off on a metal stream before a discharge of the first 20% of the metal is over and, the remaining amount of the slag is poured off during the entire period of the discharge of the rest 50% of the metal. The present invention ensures a high degree of metal refining.
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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 May 8, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 8, 1996.
- 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.