Breath freshening and oral cleansing product with magnolia bark extract
CA 2493839 C · Owner: Wm. Wrigley Jr. Company · Inventors: Greenberg, Michael J.; Maxwell, James Roy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pullulan-free edible film composition for oral cleansing breath freshening, and anti-microbial benefits includes a film forming agent and Magnolia Bark extract. In a treatment process, effective amounts of Magnolia Bark extract is delivered to the oral cavity by the edible film for convenient oral cleansing and breath freshening benefits. A method of making the pullulan-free edible film composition includes forming an aqueous solution of film forming agents and Magnolia Bark extract and drying the aqueous solution to form a dry edible film.
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 June 25, 2003 and granted November 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 25, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2025.
- 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.