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Expired Canadian patentCanada

Clothes drier

CA 87515 A · Owner: Borden, William Woodworth · Inventors: Borden, William Woodworth

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 May 31, 1904. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 1921.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 10, 1904
GrantedMay 31, 1904
Term endedMay 31, 1921
Patent numberCA 87515 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190519071909191119131915191719191921Application filedMay 10, 1904Patent grantedMay 31, 1904Term endedMay 31, 1921

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.