Solubilization of proteins in active forms
CA 2090701 C · Owner: Puri, Nirdosh K. · Inventors: Puri, Nirdosh K.; Crivelli, Enzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of preparing a protein in a physiologically active form which method , includes providing a source of protein in an at least partially solubilised form; and a refolding agent including an effective amount of a low molecular weight monothiol or derivative thereof; subjecting the solubilised protein to a refolding step in , the presence of the refolding agent.
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 August 29, 1991 and granted May 16, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 29, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 29, 2013.
- 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.