Process for conversion of germplasm
CA 2335142 C · Owner: Kaster, Larry V. Jr. · Inventors: Reysack, James Jarvis; Hawkins, Alan Francis; Kaster, Larry V. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process of converting germplasm of a method of producing a plant which shows resistance to a herbicide in particular glyphosate said method comprising: , (i) applying said herbicide to a population of herbicide resistant plants at an advanced vegetative stage before flowering; (ii) using pollen from said plants to fertilise female plants; and (iii) obtaining progeny therefrom. This method can be used in various ways, including in the production of pure hybrids, as a "switching" system in particular for sterility/fertility in plants and in the production of transgenic plants generally.
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 June 15, 1999 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 15, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 2021.
- 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.