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Expired Canadian patentCanada

Methods of assessing characteristics of fibrous substrates and treating fibrous substrates

CA 2562001 C · Owner: Gartstein, Vladimir · Inventors: Sturgis, Thomas A.; Gartstein, Vladimir; Sherman, Faiz Feisal

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Abstract From the Canadian patent

A method of assessing damage of a fibrous substrate comprises the steps of: (a) providing said fibrous substrate having a length a root end, and a tip , end; (b) providing a means for assessing substrate moisture content; (c) using said means for assessing substrate moisture content to obtain at least a first measured moisture content value for said fibrous substrate at a first position along the length of said fibrous substrate and a second measured moisture content value for said fibrous substrate at a second position along the length of said fibrous substrate; (d) comparing said measured moisture content values with each other to obtain a measured moisture content differential; …

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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 April 25, 2005 and granted April 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 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.
FiledApril 25, 2005
GrantedApril 16, 2013
Term endedApril 25, 2025
Patent numberCA 2562001 C
Classification (IPC)G01N33/48 +1 more

Timeline

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2006200820102012201420162018202020222024Application filedApril 25, 2005Patent grantedApril 16, 2013Term endedApril 25, 2025

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