Combating arthropods with 1-(substituted- phenylcarbamoyl)-3-halophenyl-2-pyrazolines
CA 1102815 A · Owner: Bayer Aktiengesellschaft · Inventors: Hammann, Ingeborg; Klauke, Erich; Sirrrenberg, Wilhelm
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
1-(Substituted-phenylcarbamoyl)-3-halophenyl- 2-pyrazolines of the.formula, in which R represents hydrogen or alkyl, R1 represents hydrogen or halogenophenyl R2 represents hydrogen, halogenoalkoxy or halogenoalkylthio, R3 represents hydrogen, halogen halogenoalkoxy or, halogenoalkylthio and R4 represents halogen, with the proviso that one of the radicals R2 and R3 must represent halogenoalkoxy or halogenoalkylthio which possess arthropodicidal properties.
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 June 9, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 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.