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Expired Canadian patentCanada

Electro-magnetic hone

CA 66052 A · Owner: Smith, Theodore R. · Inventors: Smith, Theodore R.

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.

Google PatentsCIPO record

Why it's free to use

  • Granted February 1, 1900. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 1, 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.
FiledJanuary 12, 1900
GrantedFebruary 1, 1900
Term endedFebruary 1, 1917
Patent numberCA 66052 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190119031905190719091911191319151917Application filedJan 12, 1900Patent grantedFeb 1, 1900Term endedFeb 1, 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.