Chloroacetanilides, their preparation, their use, compositions containing them, and method of combatting undesired plant growth
CA 1262902 C · Owner: Ten Haken, Pieter · Inventors: Munro, David; Ten Haken, Pieter; Webb, Shirley B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Chloroacetanilide compounds having general formula wherein A represents an optionally substituted azine selected from pyridyl, pyrazinyl, pyridazinyl, 4-pyrimidinyl or 5-pyrimidinyl group, and each of R and R1 independently represents an alkyl group having up to four carbon atoms together with a process for preparing such compounds herbicidal, compositions containing them and their use as herbicides.
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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 November 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 14, 2006.
- 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
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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.