N-benzoyl-n'-3,5-dichloro-4-hexafluoropropyloxy-phenylureas
CA 1291151 C · Owner: Ciba-Geigy Ag · Inventors: Drabek, Jozef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Benzoylphenylureas, Abstract of the Disclosure The invention relates to novel substituted N-benzoyl-N'-3,5-dichlorohexafluoropropyloxyphenylureas of the formula wherein R1 is hydrogen or fluorine and R2 is fluorine or chlorine and to salts thereof; to processes and intermediates for the preparation of these compounds and to compositions containing the novel compounds for controlling insects representatives of the, order Acarina and slugs and snails in particular plant-destructive, insects.
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 October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2008.
- 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.