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Expired Canadian patentCanada

Apparatus for and process of treating garbage

CA 58237 A · Owner: Currier, Cyrus C. · Inventors: Currier, Cyrus C.

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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 December 1, 1897. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 1, 1914.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 21, 1896
GrantedDecember 1, 1897
Term endedDecember 1, 1914
Patent numberCA 58237 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

189718991901190319051907190919111913Application filedOct 21, 1896Patent grantedDec 1, 1897Term endedDec 1, 1914

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.