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Expired Canadian patentCanada

Neck extending method and headgate therefore

CA 2374452 C · Owner: Dehod, Wendi · Inventors: Dehod, Wendi

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A headgate apparatus comprises a pair of vertically oriented shoulder bars separated by a space that is wide enough to accommodate the neck and narrow enough to prevent passage of the shoulders therebetween. A pair of vertically oriented head bars is mounted in front of the shoulder bars and separated by a space that is wide enough to accommodate the neck and narrow enough to prevent passage of the head therebetween. The head bars and shoulder bars are separated by a head separation distance sufficient to restrain backward and forward motion of the animal. A method of restraining an animal comprises maintaining the head separated from the shoulders by a distance substantially equal to the …

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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

  • Filed March 4, 2002 and granted February 1, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 4, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 4, 2024.
  • 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 4, 2002
GrantedFebruary 1, 2011
Term endedMarch 4, 2022
Patent numberCA 2374452 C
Classification (IPC)A01K1/06 +1 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedMarch 4, 2002Patent grantedFeb 1, 2011Term endedMarch 4, 2022

Sources & verification

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