Total chewing gum manufacture using continuous mixing
CA 2199712 C · Owner: Wm. Wrigley Jr. Company · Inventors: Broderick, Kevin B.; Townsend, Donald J.; Song, Joo H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is provided for the total manufacture of chewing gum on a continuous basis without requiring the separate manufacture of chewing gum base. The method uses a continuous high efficiency mixer which is configured for the total manufacture of a wide variety of chewing gum products. By integrating the manufacture of chewing gum into a single operation the method of the , invention can save time and labor and improve product consistency.
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 August 29, 1995 and granted December 11, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 29, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 29, 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
Timeline From CIPO dates
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.