Hydroxyl-and-cyano-substituted sulfur-containing compounds, compositions containing same, processes for preparing same and organoleptic uses therefor
CA 2002939 A1 · Owner: International Flavers & Fragrances Inc. · Inventors: Boden, Richard M.; Mcghie, Joseph A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Described are hydroxyl-and-cyano-substituted sulfur-containing compounds having the structures: ; , ;, -3-, ; , ;, ; , ;, ; , ;, -4-, ; ;, ; , ;, ; , ;, -5-, (wherein M is alkali metal) processes for preparing same, products produced by said processes and organoleptic uses of the said products produced by said process as well as the sub-genus of compounds having the structures: ; , ;, -6-, and , in augmenting or enhancing the aroma or taste of perfume compositions, colognes, perfumed articles foodstuffs and, chewing gums.
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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 November 14, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 14, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 2011.
- 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.