Method for giving resistance to weed control compounds to plants
CA 2270448 C · Owner: Nakajima, Hiroki · Inventors: Nagasawa, Akitsu; Nakajima, Hiroki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Weed control compound-resistant plants are produced by introducing a gene encoding a protein having the following characteristics (a) to (c): (a) having a specific affinity for a substance which is concerned with the weed control activity of a weed control compound (b) having substantially no capability of modifying a substance for which said protein has a specific affinity and (c) being substantially free from framework regions of variable regions in an immunoglobulin into a plant cell, and expressing the gene.
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 30, 1999 and granted June 26, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 30, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 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.