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Expired Canadian patentCanada

Extruded animal feed nuggets for ruminants

CA 2212166 C · Owner: Lanter, Kent J. · Inventors: Lanter, Kent J.; Weakley, David C.

CIPO record

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Abstract From the Canadian patent

Hard, stable, extruded animal feed nuggets are prepared for ruminants as a rumen escape composition in that they permit the release of beneficial nutrients in the abomasum or subsequent digestive tract. These animal feed nuggets comprise between about 90 and 99 wt.% of at least one protein-containing ingredient and between about 1.0 and 6.0 wt.% of added fat. Preferably, the animal feed nuggets also are comprised of between about 0.02 and 5.0 wt.% of sulfur.

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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 14, 1996 and granted February 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 14, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2018.
  • 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 14, 1996
GrantedFebruary 5, 2002
Term endedMarch 14, 2016
Patent numberCA 2212166 C
Classification (IPC)—

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedMarch 14, 1996Patent grantedFeb 5, 2002Term endedMarch 14, 2016

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