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Expired Canadian patentCanada

Apparatus for separating acetic and forminc acids

CA 122012 A · Owner: Raison, Victor · Inventors: Raison, Victor

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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 November 23, 1909. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 1926.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 6, 1909
GrantedNovember 23, 1909
Term endedNovember 23, 1926
Patent numberCA 122012 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

191019121914191619181920192219241926Application filedAug 6, 1909Patent grantedNov 23, 1909Term endedNov 23, 1926

Sources & verification

Official CIPO records

Canadian Patents DatabaseClaims, description, documents and status.CIPO

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