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Expired Canadian patentCanada

Elevated railway

CA 111908 A · Owner: Pfautz, Daniel M. · Inventors: Pfautz, Daniel M.

CIPO record

Overview

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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.

Why it's free to use

  • Granted May 12, 1908. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 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.
FiledJanuary 7, 1908
GrantedMay 12, 1908
Term endedMay 12, 1925
Patent numberCA 111908 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190919111913191519171919192119231925Application filedJan 7, 1908Patent grantedMay 12, 1908Term endedMay 12, 1925

Sources & verification

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