N-benzoyl-n'-alkoxyphenylureas and their use for controlling insectsand acaridae
CA 1280767 C · Owner: Basf Aktiengesellschaft · Inventors: Adolphi, Heinrich; Lange, Arno; Will, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
O.Z. 0050/36742/36970, Abstract of the Disclosure: N-benzoyl-N'-alkoxyphenylureas of the formula, where X is F, Cl or H Y is F, Cl, bromine or CH3, R1, and R2 ran be identical or different and are each H F, Cl or Br, and R3 is alkyl of 2 to 13 carbon atoms or cycloalkyl of 4 to 13 carbon atoms, their preparation and their use as insecticidal and/or acaricidal agents.
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 February 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 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.