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Expired Canadian patentCanada

Coated article with low-e coating including ir reflecting layer(s) and corresponding method

CA 2554516 C · Owner: Lemmer, Jean-Marc · Inventors: Lingle, Philip J.; Lemmer, Jean-Marc; Dietrich, Anton

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Abstract From the Canadian patent

A coated article is provided that may be heat treated in certain example embodiments. A coating of the coated article includes a zinc oxide inclusive layer located over and contacting a contact layer that is in contact with an infrared (IR) reflecting layer of a material such as silver. It has been found that the use of such a zinc oxide inclusive layer results in improved thermal stability upon heat treatment, increased visible transmission and/or lower , sheet resistance (RS).

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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 February 24, 2005 and granted May 28, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 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.
FiledFebruary 24, 2005
GrantedMay 28, 2013
Term endedFebruary 24, 2025
Patent numberCA 2554516 C
Classification (IPC)C03C17/36

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedFeb 24, 2005Patent grantedMay 28, 2013Term endedFeb 24, 2025

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