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Expired Canadian patentCanada

Fixation of volatiles in extruded glass substrates

CA 1237328 A · Owner: General Foods Corporation · Inventors: Pickup, John G.; Saleeb, Fouad Z.

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Abstract From the Canadian patent

The present invention provides a method for fixing volatiles in an extruded glass substrate. A minor component consisting of a low molecular weight water-soluble carbohydrate or food acid is dry-blended with a major component consisting of a high molecular weight water-soluble polymeric carbohydrate in a ratio of from 10% to 30% low molecular weight carbohydrate or adipic, malic or citric acids or combinations thereof to at least 70% high molecular weight material. A volatile flavorant like orange oil or acetaldehyde is combined with this substrate mixture. The dry-blended admixture is extruded at a temperature which is essentially at or below the melting point of the minor ingredient but …

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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 31, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 7, 1985
GrantedMay 31, 1988
Term endedMay 31, 2005
Patent numberCA 1237328 A
Classification (IPC)A23L27/00

Timeline

Timeline From CIPO dates

1986198819901992199419961998200020022004Application filedMarch 7, 1985Patent grantedMay 31, 1988Term endedMay 31, 2005

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