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Expired Canadian patentCanada

Granular composition for ruminant

CA 1331713 C · Owner: Showa Denko Kabushikikaisha · Inventors: Nakao, Masahiro; Iijima, Hitoshi; Sato, Shigeaki

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Abstract From the Canadian patent

A granular composition for a ruminant containing as a main component choline or a physiologically acceptable derivative thereof, wherein the composition is prepared by (1) granulating the choline or it derivative having an average particle size of 100 µm or less and a maximum particle size of 150 µm or less, an excipient having an average particle size of 10 µm or less and a maximum particle size of 20 µm or less, and a hydrophobic binder under a relative humidity of 10% or less by using an agitation granulator, followed by cooling separating, and classifying the resultant granules to obtain spherical granules having a particle size of 0.5 to 2.5 mm and (ii) forming a thin film on 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

  • Granted August 30, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 30, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 29, 1988
GrantedAugust 30, 1994
Term endedAugust 30, 2011
Patent numberCA 1331713 C
Classification (IPC)A23K50/10 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedDec 29, 1988Patent grantedAug 30, 1994Term endedAug 30, 2011

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