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Expired Canadian patentCanada

Continuous process for manufacturing animal feed blocks

CA 2129185 C · Owner: Hurt, Robert P. · Inventors: Hurt, Robert P.; Jones, Clinton H.; Mckenzie, Russell G.

CIPO record

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

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Abstract From the Canadian patent

An improved, continuous process for the production of animal feed supplements is provided. Broadly the process includes continuous preparation of a preblend including molasses and vegetable fat followed by continuous cooking of the preblend in an elongated cooking zone. The cooked preblend is then continuously treated for removal of moisture and partial cooling thereof whereupon dry ingredients (e.g. vitamins and protein sources) are added and the resultant feed supplement is continu- ously cooled and packaged.

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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 July 29, 1994 and granted January 8, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 29, 1994
GrantedJanuary 8, 2002
Term endedJuly 29, 2014
Patent numberCA 2129185 C
Classification (IPC)A23K1/02 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedJuly 29, 1994Patent grantedJan 8, 2002Term endedJuly 29, 2014

Sources & verification

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