Process for the preparation of flavouring mixtures
CA 2044799 C · Owner: Simmons, John · Inventors: Visser, Jan; Simmons, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a process for the preparation of flavouring mixtures by heating of fatty acids or fatty acid derivatives with an oxidizing agent in the presence of at least 0.1% by weight of an antioxidant. Polyunsaturated fatty acids or animal or vegetable fats which are rich in such acids are preferred as starting matrials. The preferred oxidizing agent is oxygen. The oxidation mixtures obtained are rich in aldehydes and can be used to improve the organoleptic properties of foods.
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 17, 1991 and granted May 13, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 17, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 17, 2013.
- 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.