Lactone compounds, for use as antioxidant agents in pharmaceutical, cosmetic or food compositions
CA 2490677 A1 · Owner: Mioskowski, Charles · Inventors: Le Gall, Thierry; Desage, Marine; Taran, Frederic
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns specific lactone compounds for use as antioxidant agents in pharmaceutical and cosmetic compositions or in food products said compounds comprising a naphthalene ring whereon are grafted two lactone motifs.
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 26, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 26, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 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.