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Expired Canadian patentCanada

Coated article having low-e coating with ion beam treated ir reflecting layer and corresponding method

CA 2565444 C · Owner: Guardian Industries Corp. · Inventors: Veerasamy, Vijayen

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Abstract From the Canadian patent

A coated article is provided that may be used as a vehicle windshield insulating glass (IG) window unit, or the like. An ion beam is used during at least part of forming an infrared (IR) reflecting layer(s) of such a coated article. Advantageously, this has been found to improve sheet resistance (Rs) properties, solar control properties, and/or durability of the coated article. Other layers may also be ion beam treated in certain example embodiments.

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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 June 22, 2005 and granted May 22, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 22, 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.
FiledJune 22, 2005
GrantedMay 22, 2012
Term endedJune 22, 2025
Patent numberCA 2565444 C
Classification (IPC)B32B7/02 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJune 22, 2005Patent grantedMay 22, 2012Term endedJune 22, 2025

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