Herbicidally active 2-nitro-5-phenoxyphenyloxazoles, - oxazines, -imidazoles, -pyrimidines and -thiazoles, and the production and use thereof
CA 1161841 A · Owner: Novartis Pharma Canada Inc./Novartis Pharma Canada Inc. · Inventors: Durr, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel 2-nitro-5-phenoxyphenyloxazoles -oxazines and -thiazoles, are disclosed. These compounds have the formula (I), wherein A is a C2-C3alkylene or C2-C3alkenylene radical which can be substituted by C1-C4alkyl or C1-C4haloalkyl each of R1, R2 and R3, independently is hydrogen halogen, trifluoromethyl, nitro or, cyano and X is oxygen, sulfur or an imino group. The novel compounds have herbicidal and plant growth-inhibiting properties. They are especially suitable for use as selective herbicides in crops of cereals.
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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
- Granted February 7, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 7, 2001.
- 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.