Process for isolating basic proteins from protein mixtures containing such basic proteins
CA 1340237 C · Owner: Aventis Pharma Deutschland Gmbh · Inventors: Dorschug, Michael; Obermeier, Rainer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Basic proteins are isolated from protein mixtures which contain such basic proteins and which are obtained by enzymatic cleavage of proinsulin and/or its derivatives of natural, semisynthetic or genetic engineering origin by ion exchanger chromatography on strongly acid cation exchangers.
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
- Granted December 15, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 2015.
- 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.