Method for improving refuge efficiency
CA 2602402 C · Owner: Addison, Stewart J. · Inventors: Addison, Stewart J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method to improve the efficiency of refuge crops in preventing the development of insects that are resistant to an insecticide. The method involves using an attractant to lure insects to the refuge and increase the population of survivors. The protected crops include cotton and corn. The refuge crop may be the same crop, a different crop or a naturally occurring , plant population.
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 April 1, 2005 and granted November 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 1, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.