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Expired Canadian patentCanada

Chewing gum compositions and methods of preparation

CA 1301528 C · Owner: Wokas, William J. · Inventors: Patel, Mansukh M.; Wokas, William J.; Kures, Vasek J.

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Abstract From the Canadian patent

Chewing gum compositions and methods of preparation using carbohydrate syrup-plasticizer compositions to improve flexibility and shelf life characteristics are disclosed. The syrup comprises carbohydrate solids and water, with less than 30% of the solids having a degree of polymerization (DP) of 1 and more than 20% solids with a DP of 4 or greater. The ratio of carbohydrate solids to plasticizing agent in the composition is between 0.5:1 and 100:1 and the total water content of composition is less than 20%. The syrup-plasticizer composition is prepared by providing a carbohydrate syrup or combined syrups with the proper carbohydrate solids distribution combining, a plasticizer such as …

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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 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 15, 1986
GrantedMay 26, 1992
Term endedMay 26, 2009
Patent numberCA 1301528 C
Classification (IPC)A23G4/00 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedOct 15, 1986Patent grantedMay 26, 1992Term endedMay 26, 2009

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