Expired Canadian patentCanada
Mouth hygienic composition for the treatment of halitosis
CA 2304969 C · Owner: Pedersen, Ejvind Jersie · Inventors: Pedersen, Ejvind Jersie
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mouth hygienic composition effective in treating halitosis. The composition comprises a chelate comprising a metal ion preferably a zinc ion, and an , amino acid preferably glycine.
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 September 28, 1998 and granted April 1, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 28, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 28, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 28, 1998
GrantedApril 1, 2003
Term endedSeptember 28, 2018
Patent numberCA 2304969 C
Classification (IPC)A61K8/44 +1 more
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.