Dihalopropene compound, insecticide/acaricide containing said dihalopropene compound as an active ingredient, and intermediate compound for use in production of said dihalopropenecompound
CA 2118349 A1 · Owner: Sakamoto, Noriyasu · Inventors: Suzuki, Masaya; Nagatomi, Toshio; Sakamoto, Noriyasu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a dihalopropene compound of the formula I:, wherein 1 is an integer of 1 to 5; m is an integer of 1 to 4; R1 and R2 are the same or different and are independently halogen or various other groups; D is oxygen; X is the same or different and is independently chlorine or bromine; Y is oxygen; Z P and Q, are the same or different and are independently nitrogen or CH provided that P and Q, are not simuitaneously nitrogen and when Y is sulfur, Z is CH. The invention is further directed to an insecticide/acaracide comprising the dihalopropene compound as an active ingredient. The dihalopropene compound exhibits excellent insecticidal/acaracidal action. Further …
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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
- Filed October 18, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 18, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 18, 2016.
- 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.