Herbicide resistant maize
CA 2017067 C · Owner: Macdonald, Mairi Jean · Inventors: Evans, Ian Jeffrey; Chang, Ming Tang; Macdonald, Mairi Jean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Herbicide resistant maize plants of, inbred line UE95 are obtained by mutagenesis of pollen followed by selection by germination of the resulting seed in the presence of the herbicide. The plants are resistant to normally lethal concentrations of the, herbicide imazethapyr (PURSUIT) (American Cyanamid) and have resistance to other herbicides of the imidazolinone family and to sulphonylurea herbicides such as, chlorsulfuron.
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 17, 1990 and granted January 30, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 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.
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.