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Expired Canadian patentCanada

Use of diketone precursors in food products

CA 1313331 C · Owner: Haring, Petrus Gerardus Maria · Inventors: Doornbos, Tamme; Van Der Heijden, Arnoldus; Haring, Petrus Gerardus Maria

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Abstract From the Canadian patent

The present invention is concerned with a flavour concentrate containing a precursor of biacetyl which, concentrate is characterized in that it contains 0.1-99 wt.% precursor compound(s) having the following structural formula :, in which X is, or and in which R1, R2, R3, R4, R5 and R6 can differ from each other or can be identical and consist of a methyl or ethyl group. It has been found that the present precursor compounds release biacetyl upon heating. By using the present precursor compounds in food products problems attached to the use of very volatile diketones in food products may be overcome.

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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 February 2, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 2, 2010.
  • 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 13, 1988
GrantedFebruary 2, 1993
Term endedFebruary 2, 2010
Patent numberCA 1313331 C
Classification (IPC)A23L27/20 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedMay 13, 1988Patent grantedFeb 2, 1993Term endedFeb 2, 2010

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