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Expired Canadian patentCanada

Microwavable baked goods

CA 2015271 C · Owner: General Foods Corporation · Inventors: Cochran, Stuart Allan; Veach, Susan Kay; Cin, David Anthony

CIPO record

Overview

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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 describes refrigerated, frozen or shelf stable, improved baked goods which will substantially retain palatability upon microwave heating. The improvement is accomplished by the incorporation into the baked good dough formulation of an effective amount of a protein modifier starch which contains free sulfhydryl groups. L-cysteine is a preferred protein-modifier which is incorporated into a dough at a preferred level of 200ppm (baker's percent). Other protein modifiers may substitute for all or a portion of L-cysteine at a level based on their sulphydryl content.

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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 April 25, 1990 and granted April 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 25, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 25, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 25, 1990
GrantedApril 17, 2001
Term endedApril 25, 2010
Patent numberCA 2015271 C
Classification (IPC)A21D2/00 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedApril 25, 1990Patent grantedApril 17, 2001Term endedApril 25, 2010

Sources & verification

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