Multivalent single chain antibodies
CA 2117477 C · Owner: Mezes, Peter S. · Inventors: Gourlie, Brian B.; Mezes, Peter S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention discloses, multivalent single chain antibodies which have two or more biologically, active antigen binding sites. The multivalent single chain antibodies, are formed by using a peptide linker to covalently link two or more single, chain antibodies each single chain, antibody having a variable light domain linked to a variable heavy chain domain by a peptide linker.
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 December 10, 1993 and granted June 12, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 10, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 10, 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.