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Expired Canadian patentCanada

Method of making low-e coating using ceramic zinc inclusive target, and target used in same

CA 2593028 C · Owner: Seder, Thomas A. · Inventors: Seder, Thomas A.; Lu, Yiwei

CIPO record

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Abstract From the Canadian patent

A ceramic target is used in sputter-depositing a contact layer adjacent an infrared (IR) reflecting layer in certain example embodiments. For example a , ZnOx ceramic target may be used in sputter-depositing a zinc oxide inclusive layer over and/or under a silver based IR reflecting layer in certain embodiments. In certain example embodiments the ceramic target may be doped , with a non-metal such as (F) and/or (B).

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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 10, 2006 and granted March 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 10, 2026.
  • 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 10, 2006
GrantedMarch 20, 2012
Term endedJanuary 10, 2026
Patent numberCA 2593028 C
Classification (IPC)C23C14/08 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJan 10, 2006Patent grantedMarch 20, 2012Term endedJan 10, 2026

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