Method and apparatus for holding molten metal
CA 2210005 C · Owner: Mitsubishi Jukogyo Kabushiki Kaisha · Inventors: Hukada, Yasuo; Hashimoto, Ritsuo; Kawata, Noriyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for holding molten metal in a container having an opening in the bottom thereof comprising an electromagnet for forming a horizontal magnetic field in a lower part of the molten metal in the container and an electrically conductive block for guiding part of eddy currents generated in the molten metal by the horizontal magnetic field.
Read the whole patent
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
- Filed November 8, 1996 and granted October 10, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 8, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2018.
- 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.