Preparation of purified (poly)peptides
CA 2265249 A1 · Owner: Roggero, Mario · Inventors: Fasel, Nicolas; Corradin, Giampietro; Roggero, Mario
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides for a method for the modification of (poly)peptides for facilitating purification thereof, which modification method comprises the insertion of at least one specifically cleavable amino acid at the end of the (poly)peptide chain during synthesis thereof and protecting the same amino acid(s) within the (poly)peptide, if present against cleavage, in order to , allow for specific cleavage precisely at the specifically cleavable amino acid(s). The invention further relates to a process for the preparation of purified (poly)peptides using the modification method. The process comprises the steps of synthesizing the desired (poly)peptide; adding at least one …
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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 September 9, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 9, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 2019.
- 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.