Methods of creating modified promoters resulting in varying levels of gene expression
CA 2483006 C · Owner: Genencor International, Inc. · Inventors: Valle, Fernando; Cervin, Marguerite A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method of creating promoter cassettes that include modified precursor promoters and transforming a population of bacterial host cells with a promoter library comprising the promoter cassettes resulting in bacterial clones having a range of expression levels of a gene of interest. The invention further relates to selecting a transformed bacterial host cell which has an optimum level of gene expression.
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 18, 2003 and granted October 29, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 18, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 18, 2025.
- 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.