Aqueous concentrate formulations having reduced eye irritancy
CA 2177609 C · Owner: Kassebaum, James W. · Inventors: Kassebaum, James W.; Berk, Howard C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are storage-stable aqueous concentrate formulations of pesticides or plant growth modifying agents containing sufficient amounts of an alkoxylated alkylamine surfactant to insure a high degree of pesticidal or plant growth modifying efficacy, wherein irritancy to eyes resulting from the presence of said surfactant is reduced by the presence of an effective amount of a C6-22 saturated or unsaturated alkyl monocarboxylic or dicarboxylic acid or mixture of such acids.
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 December 9, 1994 and granted February 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 9, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 2016.
- 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.