Anti-cd40 monoclonal antibody
CA 2658221 C · Owner: Takahashi, Nobuaki · Inventors: Force, Walker R.; Takahashi, Nobuaki; Chen, Xingjie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are an antibody or a functional fragment thereof that recognize human CD40 antigen present on a surface of human B cells and human dendritic cells. The antibody has amino acid sequences of a heavy chain variable region and a light chain variable region of antibody produced by hybridoma 4D11. The antibody is useful for example, as immunosuppressive agent for treating autoimmune disease or the like.
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 April 26, 2002 and granted November 27, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 2024.
- 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.