Expression of recombinant proteinase k from tritirachium album in yeast
CA 2435606 C · Owner: Geipel, Frank · Inventors: Mueller, Rainer; Thalhofer, Johann-Peter; Hoelke, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for the expression of a gene coding for a soluble , proteinase K in yeast e.g. in Pichia pastoris with subsequent secretion into the , culture medium. In addition a method for purifying the heterologously expressed and , secreted proteinase K is described.
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 February 5, 2002 and granted July 19, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 5, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2024.
- 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.