2-chloroethane-(thiono)-phosphonic acid derivatives, process for their preparation, and their use for the regulation of plant growth
CA 1048045 A · Owner: Farbenfabriken Bayer Aktiengesellschaft · Inventors: Schmidt, Robert R.; Eue, Ludwig; Hofer, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel 2-chloroethanephosphonic acid and 2-chloroethanethionophosphonic acid derivatives of the formula wherein X is oxygen or sulfur; and R is aryloxy optionally, substituted with hydroxy, alkyl halogen, or nitro, or, monoarylamino, or monalkulamino of from 1 to 6 carbon atoms; exhibit marked plant growth influencing properties e.g. inhibition or stimulation or alteration of plant growth.
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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 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 6, 1996.
- 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.