Fungicidal 3-imino-1, 4-oxathiins
CA 2066597 A1 · Owner: Relyea, Douglas I. · Inventors: Davis, Robert A.; Relyea, Douglas I.; Regis, Richard R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention related to a novel class of 1,4-oxathiins bearing a substituted 3-imino group having a broad spectrum of fungicidal activity. The class of compounds is represented by formula (I) wherein Rn is each independently C1-C12 linear or branched alkyl; halogen, trihalomethyl or C1-C6 alkoxy; R' is C1-C8 linear or branched alkyl; G is CH or N; and n is 0 1 or 2. Fungicidal compositions, methods of controlling fungi and methods for preparing the compounds are within the scope of this invention.
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 July 14, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 14, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 2012.
- 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.