Expression system employing a xylanolytic transcriptional activator
CA 2224626 C · Owner: Danisco A/S · Inventors: De Graaf, Leendert Hendrik; Visser, Jacob; Van Den Broeck, Henriette Catharina
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The subject invention lies in the field of microorganism mutation and selection of the mutants. In particular the invention is directed at , obtaining metabolic mutants in a simple direct and specific manner. In a , preferred embodiment it is also possible to obtain desired mutants not comprising recombinant DNA, thereby facilitating incorporation thereof in products for human consumption or application due to shorter legislative , procedures. The method according to the invention involves random mutation and specific selection of the desired metabolic mutant. A nucleic acid cassette comprising a nucleic acid sequence encoding a bidirectional marker said , nucleic acid cassette further …
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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 June 24, 1996 and granted November 1, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 24, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 24, 2018.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.