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Expired Canadian patentCanada

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CA 68151 A · Owner: Theall, Robert Salter · Inventors: Theall, Robert Salter

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 July 19, 1900. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 19, 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.
FiledMay 11, 1900
GrantedJuly 19, 1900
Term endedJuly 19, 1917
Patent numberCA 68151 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190119031905190719091911191319151917Application filedMay 11, 1900Patent grantedJuly 19, 1900Term endedJuly 19, 1917

Sources & verification

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