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Expired Canadian patentCanada

Method of expressing moisture and forming fabricated sheets

CA 115137 A · Owner: The Fibre Products Company · Inventors: Wells, Clerence S.

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

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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.

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Why it's free to use

  • Granted November 17, 1908. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 17, 1925.
  • 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 13, 1908
GrantedNovember 17, 1908
Term endedNovember 17, 1925
Patent numberCA 115137 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190919111913191519171919192119231925Application filedApril 13, 1908Patent grantedNov 17, 1908Term endedNov 17, 1925

Sources & verification

Official CIPO records

Canadian Patents DatabaseClaims, description, documents and status.CIPO

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