Egf variants and pharmaceutical use thereof
CA 2011008 C · Owner: Allelix Biopharmaceuticals Inc. · Inventors: Skipper, Nigel A.; Sills, A. Michael; Guo, Zimin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Biologically active variants of epidermal growth factor are provided, comprising tandemly linked units of monomeric EGF. The variants are used per se as therapeutic agents. Production of the multimeric EGF by genetically engineered microbial hosts is also described.
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 February 27, 1990 and granted September 16, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 27, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2012.
- 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.