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Expired Canadian patentCanada

Cord drop

CA 89159 A · Owner: D'Olier, Henry Jr. · Inventors: D'Olier, Henry Jr.

CIPO record

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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 September 13, 1904. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 13, 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.
FiledMarch 23, 1904
GrantedSeptember 13, 1904
Term endedSeptember 13, 1921
Patent numberCA 89159 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190519071909191119131915191719191921Application filedMarch 23, 1904Patent grantedSep 13, 1904Term endedSep 13, 1921

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.