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Expired Canadian patentCanada

Method of making composite laminated product

CA 2510947 C · Owner: Advanced Glazing Technologies Limited (Agtl) · Inventors: Milburn, Douglas I.

CIPO record

Overview

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

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Abstract From the Canadian patent

A method of making a composite light diffusing panel including at least spaced apart lites with a fabric layer applied to an inner surface of at least one of said lites involves applying a transparent adhesive to the layer of fabric or the lite(s) firmly applying the layer of fabric onto the lite(s) to avoid wrinkling fabric curing the adhesive to bond the fabric to the lite(s) and assembling the lites to form the light diffusing panel. In this way a functionally useful product can be obtained that does not suffer from wrinkling and other distracting effects.

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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 28, 2005 and granted April 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 28, 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 28, 2005
GrantedApril 16, 2013
Term endedJune 28, 2025
Patent numberCA 2510947 C
Classification (IPC)B32B7/12 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJune 28, 2005Patent grantedApril 16, 2013Term endedJune 28, 2025

Sources & verification

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