Gene switch
CA 2008695 C · Owner: Schuch, Wolfgang Walter · Inventors: Greenland, Andrew James; Bright, Simon William Jonathan; Bridges, Ian George
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
1. A gene promoter sequence which responds to application of an exogenous chemical inducer such as one of the plant herbicide safeners is utilised as a gene switch to enable external control of expression of a gene placed under control of the promoter. A specific example of the gene switch construct is the maize GSTII (glutathione-S-transferase isoform II) enzyme promoter sequence which is inducer by external application of the safener, N,N-diallyl-2,2-dichloroacetamide.
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 January 26, 1990 and granted March 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 26, 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.