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Expired Canadian patentCanada

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CA 67348 A · Owner: Von Freystadtler, Eugene Ritter · Inventors: Von Freystadtler, Eugene Ritter

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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.

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Why it's free to use

  • Granted May 15, 1900. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 15, 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.
FiledApril 30, 1900
GrantedMay 15, 1900
Term endedMay 15, 1917
Patent numberCA 67348 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190119031905190719091911191319151917Application filedApril 30, 1900Patent grantedMay 15, 1900Term endedMay 15, 1917

Sources & verification

Official CIPO records

Canadian Patents DatabaseClaims, description, documents and status.CIPO

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Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.com

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