Inositol-excreting yeast
CA 2063195 C · Owner: Henry, Susan A. · Inventors: White, Michael J.; Henry, Susan A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A yeast cell, preferably Saccharomyces cerevisiae which contains a functional stable recombinant DNA sequence that does not allow for the encoding of a negative regulator of phospholipid biosynthesis therein and which has multiple copies of an INO1 gene. In a preferred embodiment the recombinant DNA, sequence is an OPI1 gene deletion which results in the deregulation of inositol or inositol-containing metabolites such as inositol-1-phosphate synthase. Moreover there is a method, for obtaining inositol inositol-containing metabolites or, phospholipids such as myo-inositol or inositol-1-phosphate. The method comprises the steps of genetically engineering a stable yeast cell, preferably …
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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 March 17, 1992 and granted June 27, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 17, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 17, 2014.
- 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.