Method of controlling fungus, mites, worms, termites, nematodes, and other insects
CA 2007115 C · Owner: Browning, Henry A. · Inventors: Browning, Henry A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to the discovery that a very particular kind of nonionic surfactant namely an alkyloxy-, polyethyleneoxyethanol can be used as the sole active ingredient to control fungus, mites, worms termites, nematodes, and other insects. It is believed that these alkyloxypolyethyleneoxyethanols can be represented by the formula:, wherein n is from 9 to 15 and m is from 3 to 40.
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 January 4, 1990 and granted January 21, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 4, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 4, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.