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Expired Canadian patentCanada

Particulate materials for acoustic texture material

CA 2497927 C · Owner: Ppg Architectural Finishes, Inc. · Inventors: Greer, Lester R. Jr.

CIPO record

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Abstract From the Canadian patent

An aerosol texturing system for forming a textured surface on drywall material. The aerosol texturing system comprises an aerosol assembly defining a product chamber and acoustic texture material and propellant material disposed within the product chamber. The aerosol assembly is selectively operable in a first mode in which the product chamber is sealed and in a second mode in which fluid is allowed to flow out of the product chamber along a dispensing passageway. The acoustic texture material comprises a base portion and a particulate portion. The particulate portion comprises at least one particulate material selected from the group consisting of urethane foam and melamine foam. At least …

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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 February 22, 2005 and granted May 8, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 22, 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.
FiledFebruary 22, 2005
GrantedMay 8, 2012
Term endedFebruary 22, 2025
Patent numberCA 2497927 C
Classification (IPC)E04F21/12 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedFeb 22, 2005Patent grantedMay 8, 2012Term endedFeb 22, 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.