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Expired Canadian patentCanada

Method for adhering fabric to rubber, treated fabric, and fabric-rubber composites

CA 2565035 C · Owner: Klang, Jeffrey A. · Inventors: Burke, Joseph S.; Klang, Jeffrey A.

CIPO record

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

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Abstract From the Canadian patent

Maleinized imide polymer resins, optionally in solution and optionally comprising metallic salt of .alpha..beta.-ethylenically unsaturated carboxylic acid, the polymer being selected from the group consisting of butadiene homopolymer, butadiene copolymers isoprene homopolymer, isoprene , copolymers and poly(maleic anhydride-co-alkenyl benzenes) are used to treat , fabric and thereby improve fabric to rubber adhesion. Treated fabric and fabric-rubber composites and specific uses are also disclosed.

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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 May 11, 2005 and granted April 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 11, 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.
FiledMay 11, 2005
GrantedApril 23, 2013
Term endedMay 11, 2025
Patent numberCA 2565035 C
Classification (IPC)C08C19/36 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMay 11, 2005Patent grantedApril 23, 2013Term endedMay 11, 2025

Sources & verification

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