Insecticidal product
CA 2091065 C · Owner: Perycut-Chemie Ag · Inventors: Bencsits, Franz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns an insecticidal product which includes a vehicle impregnated with an insecticidal composition. The insecticidal composition contains at least one pyrethroid at least one W-, absorbing agent and at least one anti-oxidant which may be a tocopherol derivative, ascorbyl palmitate or an ester of citric acid and which is preferably coated as an emulsion on a polyethylene sheet. The product is used as a "carpet" against (lying and crawling insects such as flies and cockroaches.
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
- Filed September 12, 1991 and granted May 23, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 12, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 12, 2013.
- 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.