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Expired Canadian patentCanada

Leather stretcher

CA 114159 A · Owner: Hysore, William Ferdinand · Inventors: Barnstead, Charles Brant; Hysore, William Ferdinand

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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.

Google PatentsCIPO record

Why it's free to use

  • Granted September 22, 1908. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 22, 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.
FiledNovember 2, 1907
GrantedSeptember 22, 1908
Term endedSeptember 22, 1925
Patent numberCA 114159 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190819101912191419161918192019221924Application filedNov 2, 1907Patent grantedSep 22, 1908Term endedSep 22, 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.