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Expired Canadian patentCanada

Industrial two-layer fabric

CA 2528209 C · Owner: Murakami, Masakazu · Inventors: Ueda, Ikuo; Murakami, Masakazu; Takimoto, Keiichi

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 industrial two-layer fabric composed of an upper surface side fabric having an upper surface side warp and a weft and a lower surface side fabric having a lower surface side warp and weft the upper and lower surface side warps being arranged vertically and constituting a pair and the upper and lower surface side fabrics being bound with a yarn in a warp direction. The lower surface side fabric is made of a repeating design unit in which one of warp binding yarns constituting a pair to be woven with an upper surface side weft and a lower surface side weft or a lower surface side warp passes under one lower surface side weft and then passes over a plurality of lower surface side wefts; a …

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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 November 25, 2005 and granted April 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 25, 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.
FiledNovember 25, 2005
GrantedApril 2, 2013
Term endedNovember 25, 2025
Patent numberCA 2528209 C
Classification (IPC)D03D11/00 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedNov 25, 2005Patent grantedApril 2, 2013Term endedNov 25, 2025

Sources & verification

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