Expired Canadian patentCanada
Use of ginkgo biloba flavonoidic extract substantially devoid or terpenes for oral hygiene and composition containing such extract
CA 2269895 C · Owner: O'Reilly, Joseph · Inventors: O'Reilly, Joseph
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns the use of a flavonoidic extract of ginkgo biloba leaves and more specifically an extract devoid or terpenes for oral hygiene. The invention also concerns a composition for oral hygiene containing such an extract.
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 October 24, 1997 and granted January 18, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 24, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 24, 1997
GrantedJanuary 18, 2011
Term endedOctober 24, 2017
Patent numberCA 2269895 C
Classification (IPC)A61Q11/00
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.