Non-flammable aerosol insecticidal compositions
CA 2427909 C · Owner: Merwin, Richard · Inventors: Besser, Brice; Merwin, Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A non-flammable aerosol composition insectidal composition comprising 0.01 to 20 weight percent of one or more insecticides; 5 to 25 weight percent of one or more compounds selected from the group consisting of acetone methyl ethyl ketone, and C1- to C8- alcohol; 5 to 30 weight percent of one or more compounds selected from the group consisting of hydrocarbon propellants dimethyl ether, and 1,1-difluoroethane; and 60 to 90 weight percent of one or more non-combustible hydrofluorocarbons.
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 May 5, 2003 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 5, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 5, 2025.
- 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.