Chewing gum base manufacturing process using plurality of softening agents inlets
CA 2199126 C · Owner: Song, Joo H. · Inventors: Song, Joo H.; Townsend, Donald J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for continuously producing a chewing gum base comprises the steps of continuously adding a hard elastomer, a filler and lubricating agents comprising a softening agent into a continuous mixer (10) subjecting the , elastomer, filler and lubricating agents to a dispersive mixing operation followed by a distributive mixing operation and continuously discharging the resulting chewing gum base from the mixer while the adding and mixing steps are in progress. The softening agent is introduced into the continuous mixer (10) at a plurality of spatially separated feed inlets (12 13, 15). The , softening agent is selected from the group consisting of fats oils, waxes, emulsifiers and …
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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
- Filed March 13, 1995 and granted January 15, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 13, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2017.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.