Vitamin d analogues
CA 2468892 C · Owner: Bernardon, Jean-Michel · Inventors: Biadatti, Thibaud; Bernardon, Jean-Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns tri-aromatic compounds vitamin D analogues, of general formula (I) as novel and useful industrial products and their preparation method as well as their use in pharmaceutical compositions for use in human or veterinary medicine or in cosmetic compositions.
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, 2002 and granted February 12, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 6, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 6, 2024.
- 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.