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Expired Canadian patentCanada

Method of manufacturing a circuit carrier and the use of the method

CA 2549314 C · Owner: Hofmann, Hannes P. · Inventors: Hofmann, Hannes P.

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Abstract From the Canadian patent

A method of manufacturing a circuit carrier and the use of said method are proposed, said method comprising, after providing a printed circuit board (a) coating the circuit board on at least one side thereof with a dielectric (b) structuring the dielectric for producing trenches and vias therein using laser ablation (c) are performed. Next, a primer layer is deposited onto the dielectric, either onto the entire surface thereof or into the produced trenches and vias only (d). A metal layer is deposited onto the primer layer with the trenches and vias being completely filled with metal for forming conductor structures therein (e). Finally the excess metal and the primer , layer are …

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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 January 20, 2005 and granted March 12, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 20, 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.
FiledJanuary 20, 2005
GrantedMarch 12, 2013
Term endedJanuary 20, 2025
Patent numberCA 2549314 C
Classification (IPC)H05K3/46 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJan 20, 2005Patent grantedMarch 12, 2013Term endedJan 20, 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.