Refolding and purification of insulin-like growth factor i
CA 2109820 A1 · Owner: Cox, George N. · Inventors: Gleason, Tom M.; Cox, George N.; Mcdermott, Martin J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention resides in the refolding of recombinantly produced IGF-I expressed in prokaryotic cells particularly, bacteria, to render biologically active IGF-I and to methods of, isolating correctly refolded IGF-I from incorrectly refolded IGF-I. The present invention also resides in pharmaceutical compositions containing IGF-I and in methods of treating a patient having an IGF associated condition. The present invention also relates to the conversion of met-IGF-I to IGF-I.
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 March 19, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 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.