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Expired Canadian patentCanada

Single compatibilizing agents for elastomer-resin combination gum base

CA 1235016 A · Owner: Kraft Foods North America, Inc. · Inventors: D'Amelia, Ronald P.; Stroz, John J.; White, Roy

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

A chewing gum containing a new homogeneous gum base and a process for the preparation thereof wherein the gum base includes a single polymeric compatibilizing agent which is capable of properly plasticizing both the resin and the elastomer components contained therein. The primary components are made effectively compatible with each other by use of the novel agents.

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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 April 12, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 12, 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.
FiledJune 25, 1984
GrantedApril 12, 1988
Term endedApril 12, 2005
Patent numberCA 1235016 A
Classification (IPC)A23G4/00

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedJune 25, 1984Patent grantedApril 12, 1988Term endedApril 12, 2005

Sources & verification

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