Compounds for a controlled release of active molecules
CA 2468231 A1 · Owner: Fehr, Charles · Inventors: Struillou, Arnaud; Fehr, Charles; Galindo, Jose
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to the field of perfumery. More particularly it , concerns compounds comprising at least one .beta.-oxy or .beta.-thio carbonyl moiety capable of liberating a perfuming molecule such as for example, an , .alpha..beta.-unsaturated ketone aldehyde or carboxylic ester. The present invention concerns also the use of said compounds in perfumery as well as the perfuming compositions or perfumed articles comprising the invention's compounds.
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 11, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 11, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 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.