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Expired Canadian patentCanada

Electric motor

CA 64639 A · Owner: Schenck Bradley, Charles · Inventors: Schenck Bradley, Charles

CIPO record

Overview

Drawings and full text

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 October 30, 1899. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 30, 1916.
  • 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 12, 1898
GrantedOctober 30, 1899
Term endedOctober 30, 1916
Patent numberCA 64639 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

189919011903190519071909191119131915Application filedNov 12, 1898Patent grantedOct 30, 1899Term endedOct 30, 1916

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.