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Expired Canadian patentCanada

Method for making metallic patterns

CA 1298567 C · Owner: Demmer, Christopher G. · Inventors: Demmer, Christopher G.; Irving, Edward

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Abstract From the Canadian patent

3-15959/+/ARL 371, Method for making metallic patterns Abstract of Disclosure, The present invention provides a method for making a metallic pattern on a substrate having a surface comprising bare metal in predetermined areas and metal coated by a resist in remaining areas which comprises (i) protecting the bare metal by electrodepositing a resin thereon, (ii) while leaving the electrodeposited resin substantially uncured, removing the resist from said remaining areas using a solvent which will not remove the electrodeposited resin thereby exposing metal in said remaining areas (iii) etching the, metal exposed in (ii) using an etchant which does not remove the electrodeposited resin, and …

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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 April 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 7, 2009.
  • 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 16, 1987
GrantedApril 7, 1992
Term endedApril 7, 2009
Patent numberCA 1298567 C
Classification (IPC)H05K3/06 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedJune 16, 1987Patent grantedApril 7, 1992Term endedApril 7, 2009

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