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Expired Canadian patentCanada

Granulated powdery paint and process for producing the same

CA 2289794 C · Owner: Kato, Yoshinori · Inventors: Ohkoshi, Toshio; Wakimoto, Mituo; Kawamoto, Yugen

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 granulated powdery paint characterized by being produced by granulating a starting powdery paint having an average particle diameter of not larger than 10 µm so as to have an average granule diameter suitable for powder coating; and a process for producing a granulated powdery paint characterized by granulating a starting powdery paint having an average particle diameter of not larger than 10 µm so as to have an average granule diameter suitable for powder coating.

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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 15, 1998 and granted July 8, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 15, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 15, 2020.
  • 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 15, 1998
GrantedJuly 8, 2003
Term endedMay 15, 2018
Patent numberCA 2289794 C
Classification (IPC)C09D5/03 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedMay 15, 1998Patent grantedJuly 8, 2003Term endedMay 15, 2018

Sources & verification

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