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Expired Canadian patentCanada

Apparatus for injecting steam into cupuloas in the process of melting iron

CA 68178 A · Owner: Morton, George Lewis · Inventors: Morton, George Lewis

CIPO record

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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 July 23, 1900. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 1917.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 14, 1899
GrantedJuly 23, 1900
Term endedJuly 23, 1917
Patent numberCA 68178 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190019021904190619081910191219141916Application filedDec 14, 1899Patent grantedJuly 23, 1900Term endedJuly 23, 1917

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