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Expired Canadian patentCanada

Insulating shaft coupling

CA 126834 A · Owner: The Charles Bond Company · Inventors: Grundy, John Richard

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.

Why it's free to use

  • Granted July 12, 1910. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 12, 1927.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 28, 1910
GrantedJuly 12, 1910
Term endedJuly 12, 1927
Patent numberCA 126834 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

191119131915191719191921192319251927Application filedFeb 28, 1910Patent grantedJuly 12, 1910Term endedJuly 12, 1927

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.