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Expired Canadian patentCanada

Process for the currentless deposition of metal layers on the surfaces of metals

CA 1209412 A · Owner: Max Planck Gesellschaft Zur Forderung Der Wissenschaften E.V. · Inventors: Peters, Karl; Uray, Georg; Quast, Helmut

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Abstract From the Canadian patent

The present invention provides a process for the currentless deposition of layers of metals of Groups Ib, IIb, IVb, Vb and VIII of the Periodic Table of Elements on appropriate more electronegative metals by contacting an object to be coated with a coating bath, wherein a coating bath is used which contains a metal complex obtainable by reacting a corresponding divalent or trivalent metal halide with a hydrohalide of a base which is capable of complex formation with the metal. The present invention also provides a coating bath for the currentless deposition of layers of metals of Groups Ib, IIb, IVb, Vb and VIII of the Periodic Table of Elements on appropriate more electronegative metals, …

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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 August 12, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 12, 2003.
  • 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 28, 1983
GrantedAugust 12, 1986
Term endedAugust 12, 2003
Patent numberCA 1209412 A
Classification (IPC)C23C18/16 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedSep 28, 1983Patent grantedAug 12, 1986Term endedAug 12, 2003

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