Use of trifluoromethylphenylazolylmethyloxiranes as crop protection agents
CA 2011087 C · Owner: Ammermann, Eberhard · Inventors: Ammermann, Eberhard; Smuda, Hubert; Bireckoven, Bernd
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Trifluoromethylphenylazolylmethyloxiranes of the formula , (see formula I), where, R1 is hydrogen halogen, nitro, phenyl, phenoxy, alkyl alkoxy, haloalkyl, haloalkoxy and, furthermore R1 together with the, phenyl nucleus may also form naphthyl which is unsubstituted or substituted, n is an integer from 1 to 5 R2 is ortho- or para-trifluoromethyl, X i s CH or N and the acid addition salts and metal salts thereof which are tolerated by plants, and fungicides containing these 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 February 26, 1990 and granted December 12, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 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.