Phenoxyphenylthiolactic acid derivatives
CA 1097679 A · Owner: Novartis Pharmaceuticals Canada Inc./Novartis Pharma Canada Inc. · Inventors: Pissiotas, Georg; Durr, Dieter; Rohr, Otto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides novel phenoxyphenylthiolactic acid derivatives of the formula I, wherein B can be the carboxyl group the salt or ester, function thereof, the thiocarbonyl group the salt or, ester function thereof, or an amide radical. These derivatives have herbicidal and plant growth-regulating action and can be used in agriculture when formulated to appropriate composition.
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
- Granted March 17, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 1998.
- 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.