Stable skin care product containing a retinoid and a retinoid booster system in a dual compartment package
CA 2431563 C · Owner: Chandar, Prem · Inventors: Chandar, Prem; Granger, Stewart Paton; Scott, Ian Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A stable skin care product comprising a first composition comprising about 0.001% to about 10% of a retinoid; a second composition comprising about 0.0001% to about 50% of at least one retinoid booster; a first compartment for storing the first composition, wherein the first compartment keeps the first composition out of contact with oxygen; and a second compartment for storing the second composition, the first and second compartments being joined together.
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 December 6, 2001 and granted August 16, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 6, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 6, 2023.
- 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.