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Expired Canadian patentCanada

Coextruded chewing gum containing a soft core portion

CA 1186934 A · Owner: Nabisco Brands, Inc. · Inventors: Roy, Raymond L.; Cherukuri, Subraman R.; Wolf, Stephen H.

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

Abstract of the Disclosure, A coextruded chewing gum is provided which includes an extruded center portion surrounded by and bonded to an extruded outer shell portion. The center portion of the coextruded chewing gum will be of a generally soft consistency substan-, tially softer than that ordinarily employed in chewing gums of conventional structure while, the outer shell portion will provide a protective layer or coating for the core portion to inhibit sweating and stickiness and thereby allow for use of conventional wrapping machines.

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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 14, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 14, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 23, 1982
GrantedMay 14, 1985
Term endedMay 14, 2002
Patent numberCA 1186934 A
Classification (IPC)A23G3/00 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedFeb 23, 1982Patent grantedMay 14, 1985Term endedMay 14, 2002

Sources & verification

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