Chimeric polypeptide comprising the fragment b of shiga toxin and peptides of therapeutic interest
CA 2296711 C · Owner: Goud, Bruno · Inventors: Goud, Bruno; Johannes, Ludger
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a polypeptide sequence comprising the fragment B of Shiga toxin or a functional equivalent thereof bound at the carboxy-terminal end with one or several polypeptides corresponding to the formula B - X in which B represents the fragment B of the Shiga toxin and X represents one or several polypeptides of therapeutic interest and its use as active principle in a therapeutic composition.
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 July 17, 1998 and granted July 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 17, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 17, 2020.
- 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.