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Expired Canadian patentCanada

Method of altering the contents of eggs

CA 2220182 C · Owner: Meier, Albert H. · Inventors: Meier, Albert H.; Wilson, John M.

CIPO record

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Abstract From the Canadian patent

A method for reducing the total fat and cholesterol contents and the ratio of saturated to unsaturated fatty acids and for increasing total protein content in eggs produced by animals is described. The level of L- Dihydroxyphenylalanine (L-DOPA) in the bloodstream of the poultry is elevated so as to cause the animals to produce eggs which have a reduced cholesterol content and eggs which have a lower ratio of saturated to unsaturated fatty acids. In a preferred embodiment the L-DOPA is orally administered to poultry by incorporation in the food for said poultry.

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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 May 22, 1996 and granted December 18, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 22, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 22, 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.
FiledMay 22, 1996
GrantedDecember 18, 2001
Term endedMay 22, 2016
Patent numberCA 2220182 C
Classification (IPC)A23K1/16 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedMay 22, 1996Patent grantedDec 18, 2001Term endedMay 22, 2016

Sources & verification

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