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Expired Canadian patentCanada

Gas generating apparatus

CA 75724 A · Owner: Fournier, Louis Godfrey · Inventors: Fournier, Louis Godfrey; Clone, William Henry

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 May 6, 1902. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 6, 1919.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 24, 1900
GrantedMay 6, 1902
Term endedMay 6, 1919
Patent numberCA 75724 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

1901190319051907190919111913191519171919Application filedMarch 24, 1900Patent grantedMay 6, 1902Term endedMay 6, 1919

Sources & verification

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