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Expired Canadian patentCanada

Long-lasting flavored chewing gum and process for preparing same

CA 1082517 A · Owner: Life Savers, Inc. · Inventors: Witzel, Frank; Mackay, Donald A. M.; Schoenholz, Daniel

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 flavored chewing gum is provided which contians a water-insoluble gum base, and one or more finely divided poorly water-soluble sweetening agents such as the free, acid form of saccharin and/or one or more finely divided poorly water-soluble food acids, such as fumaric acid succinic acid or adipic acid, dispersed in the gum base. The finely divided sweetening agent and/or finely divided food acid undergo controlled release from the gum base for relatively long periods, for example for 30 minutes, or more, during which time the chewing gum delivers a balanced sweet and non-sour or sour taste.

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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 July 29, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 29, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 13, 1976
GrantedJuly 29, 1980
Term endedJuly 29, 1997
Patent numberCA 1082517 A
Classification (IPC)A23G4/00

Timeline

Timeline From CIPO dates

1977198019831986198919921995Application filedMay 13, 1976Patent grantedJuly 29, 1980Term endedJuly 29, 1997

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