Patent Yard Sign in
Expired Canadian patentCanada

Wax-free chewing gum with improved processing properties

CA 2130572 C · Owner: Reed, Michael A. · Inventors: Synosky, Steven P.; Reed, Michael A.; Patel, Mansukh M.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A wax-free chewing gum is provided which has improved processing and chewing properties similar to a wax-containing, chewing gum and which does not exhibit short texture. The improvement is effected by adding an incremental amount of an extender to the chewing gum. A method is also provided for making a wax-free chewing gum which has processing and chewing properties similar to a wax-containing chewing gum.

Read the whole patent

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

  • Filed March 2, 1993 and granted August 4, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 2, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 2, 2015.
  • 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 2, 1993
GrantedAugust 4, 1998
Term endedMarch 2, 2013
Patent numberCA 2130572 C
Classification (IPC)A23G4/00 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedMarch 2, 1993Patent grantedAug 4, 1998Term endedMarch 2, 2013

Sources & verification

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