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Expired Canadian patentCanada

Magnesium alloy cast material

CA 2723075 C · Owner: Sumitomo Electric Industries, Ltd. · Inventors: Nakai, Yoshihiro; Nishikawa, Taichiro; Ikeda, Toshiya

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Abstract From the Canadian patent

The invention is to provide a magnesium alloy material such as a magnesium alloy cast material or a magnesium alloy rolled material excellent in mechanical characteristics and surface precision a producing method capable of stably producing such material a magnesium alloy formed article utilizing the rolled material and a producing method therefor. The invention provides a producing method for a magnesium alloy material including a melting step of melting a magnesium alloy in a melting furnace to obtain a molten metal a transfer step of transferring the molten metal from the melting furnace to a molten metal reservoir and a casting step of supplying a movable mold with the molten metal from …

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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

  • Filed June 28, 2005 and granted October 6, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 28, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 28, 2005
GrantedOctober 6, 2015
Term endedJune 28, 2025
Patent numberCA 2723075 C
Classification (IPC)C22C23/00

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJune 28, 2005Patent grantedOct 6, 2015Term endedJune 28, 2025

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.