Silica and magnesium chloride based support, process for its preparation, and catalysts made with said support

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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, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 8, 2007.
• We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.