Pyrazoles
CA 2095941 A1 · Owner: Schaub, Fritz · Inventors: Eberle, Martin; Schaub, Fritz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Case 130-4067, NOVEL PYRAZOLES, Abstract of the Disclosure The invention compounds of formula I, (I) wherein R is H, C1-4alkyl; optionally substituted aryl or CF3; Y is Cl-4alkyl or optionally substituted aryl; A is nitrogen or CH; and, Z is optionally substituted hydrocarbyl or optionally substituted heteroaryl;, the use of such compounds for the control of phytopathogens compositions for facilitating such use and the preparation of, compounds of formula I.
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 May 11, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 11, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 11, 2015.
- 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.