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Expired Canadian patentCanada

Method, solution and paint for forming a metallic mirror surface or metallic luster

CA 2284342 C · Owner: Kanomata, Yuji · Inventors: Kanomata, Yuji; Takahagi, Akihiro

CIPO record

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Abstract From the Canadian patent

A method for forming a metallic mirror surface on a receiving surface substrate or article is shown. The method comprises the steps of cleaning the receiving surface; spraying on the receiving surface an activating treatment agent containing stannous chloride and at least one precious metal salt of palladium gold and silver or the like; and separately spraying concurrently on the receiving surface a reacting metallic salt solution and a reducing agent solution to form the metallic mirror surface. The method may include the step of treating the receiving surface with a water wash treatment. The activating treatment agent may be in a solution form and contain about 10cc to about 44 cc of …

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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 September 30, 1999 and granted November 1, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 30, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 30, 1999
GrantedNovember 1, 2011
Term endedSeptember 30, 2019
Patent numberCA 2284342 C
Classification (IPC)B05D5/06 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedSep 30, 1999Patent grantedNov 1, 2011Term endedSep 30, 2019

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