Method for obtaining vaccines for preventing the pathogenic effects related to a retroviral infection
CA 2309676 C · Owner: Hippocampe · Inventors: Serres, Pierre-Francois
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for obtaining a vaccine against the pathogenic effects related to infection of a host by a retrovirus in the event that the target cells of the retrovirus have a membrane receptor for a protein of the host and the viral infection induces an immune response directed both against an envelope protein of the virus and against a protein of the host. The method consists in preparing a vaccine agent based on a polypeptide comprising a fragment of an immunodominant and preserved zone of the retrovirus envelope protein in a modified form such that the vaccine agent induces an immune response directed against the envelope protein and not against the host protein.
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 November 17, 1998 and granted August 7, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 17, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 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.