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Expired Canadian patentCanada

Sucker rod coupler

CA 62744 A · Owner: Byerlay, John Henry · Inventors: Byerlay, John Henry

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 February 23, 1899. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 23, 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.
FiledJune 23, 1898
GrantedFebruary 23, 1899
Term endedFebruary 23, 1916
Patent numberCA 62744 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

189919011903190519071909191119131915Application filedJune 23, 1898Patent grantedFeb 23, 1899Term endedFeb 23, 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.