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Expired Canadian patentCanada

Method for improving the flavour characteristics of potato products

CA 1339870 C · Owner: Maria De Rooij, Johannes Franciscus · Inventors: Van Osnabrugge, Willem; Maria De Rooij, Johannes Franciscus; Simmons, John David

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

The invention provides a method for improving the flavour characteristics of potato products by treating the potato material with a processed flavour mixture obtained by heating a mixture containing a reducing sugar, amino acid(s) and a sulphur donor compound to a temperature between 70 and 180 °C. It is preferred that potato material are chips or french fries.

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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 May 19, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 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.
FiledDecember 6, 1988
GrantedMay 19, 1998
Term endedMay 19, 2015
Patent numberCA 1339870 C
Classification (IPC)A23L19/18 +1 more

Timeline

Timeline From CIPO dates

198919921995199820012004200720102013Application filedDec 6, 1988Patent grantedMay 19, 1998Term endedMay 19, 2015

Sources & verification

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