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Expired Canadian patentCanada

Immunologically active whey fraction and recovery process

CA 1340183 C · Owner: Lanier Industries, Inc. · Inventors: Lucas, David O.; Stott, Gerald H.

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Abstract From the Canadian patent

A dry, immunologically active filtered product is produced through the controlled one or two stage ultrafiltration of liquid whey containing immunologically active immunoglobulin (Ig). When a predetermined quantity of the filtered product with an active Ig concentration of at least about seven percent of total solids is fed to newborn calves, the product functions as a substitute for natural colostrum, providing both temporary passive immunity as well as initiation of the active immune system of the animal. Disease resistance and growth rate in animals including humans is enhanced by oral administration of the filtered product. The immunological properties of the filtered product result …

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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 December 15, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 13, 1987
GrantedDecember 15, 1998
Term endedDecember 15, 2015
Patent numberCA 1340183 C
Classification (IPC)A61K39/39 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006200920122015Application filedJan 13, 1987Patent grantedDec 15, 1998Term endedDec 15, 2015

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