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Expired Canadian patentCanada

Former for armature coils

CA 104357 A · Owner: Foot, William H. · Inventors: Foot, William H.

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 March 26, 1907. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 26, 1924.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 28, 1906
GrantedMarch 26, 1907
Term endedMarch 26, 1924
Patent numberCA 104357 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190719091911191319151917191919211923Application filedNov 28, 1906Patent grantedMarch 26, 1907Term endedMarch 26, 1924

Sources & verification

Official CIPO records

Canadian Patents DatabaseClaims, description, documents and status.CIPO

Cross-check elsewhere

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.