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Expired Canadian patentCanada

Anti-static, anti-reflection coating

CA 2396799 C · Owner: Sola International Holdings Ltd. · Inventors: Blacker, Richard Simon; Marechal, Nadine Genevieve

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An anti-static, anti-reflection, transparent coating for a transpatent substrate, the coating including at least one electrically conductive layer wherein the sheet resistance of the coating is less than about 1010 ohm/square. The coating is preferably higher transparent.

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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 3, 2001 and granted April 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 3, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 3, 2023.
  • 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 3, 2001
GrantedApril 24, 2012
Term endedJanuary 3, 2021
Patent numberCA 2396799 C
Classification (IPC)G02B1/10 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedJan 3, 2001Patent grantedApril 24, 2012Term endedJan 3, 2021

Sources & verification

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