Modification of starch content in plants
CA 2192195 C · Owner: Burrell, Michael Meyrick · Inventors: Burrell, Michael Meyrick; Weir, Alfhous Freddie; Coates, Stephen Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is based on the surprising effect of increased enzyme activity when one of the genes of one of the subunit proteins of an enzyme catalysing starch is incorporated into a plant. The method also includes the introduction of one of the genes of one of the subunit proteins of a plurality of other enzymes catalysing starch synthesis. The gene is suitably a brittle-2 gene. Increased activity of ADPG PPsse is shown and also an increase in starch synthesis.
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 6, 1995 and granted January 18, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 6, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 2017.
- 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.