Agents for repulsing insects and mites
CA 1324952 C · Owner: Hoever, Franz-Peter · Inventors: Lunkenheimer, Winfried; Kruger, Bernd-Wieland; Hoever, Franz-Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Agents for repulsing insects and mites ABSTRACT OF THE DISCLOSURE, A insect and mite repellant composition in which the active ingredient is an acylated .alpha.-amine acid ester derivative of the formula, in which, R1 stands for hydrogen or for an optionally substituted alkyl, alkenyl or alkinyl radical R2 and R5 are identical or different and stand for optionally substituted alkyl, alkenyl or alkinyl radicals and, R3 and R4 stand for hydrogen or optionally substituted alkyl, aralkyl or aryl, or together with the atom to which they are bonded form an optionally substituted, monocyclic ring.
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 December 7, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 7, 2010.
- 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.