Expired Canadian patentCanada
Cyanovinyl pyrethroids, their acid intermediates, and pesticidal use thereof
CA 1183860 A · Owner: American Cyanamid Company · Inventors: Brown, Dale G.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to novel substituted cyclopropanecarboxylic acid esters, their acid intermediates and, to methods of preparation thereof. The invention also relates to methods of use of the compounds for the control of ticks.
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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 March 12, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 12, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 23, 1979
GrantedMarch 12, 1985
Term endedMarch 12, 2002
Patent numberCA 1183860 A
Classification (IPC)C07C255/31 +2 more
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.