Novel cytokine
CA 2312667 C · Owner: Immunex Corporation · Inventors: Spriggs, Melanie K.; Armitage, Richard J.; Fanslow, William C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed a polypeptide (CD40-L) and DNA sequences, vectors and transformed host cells useful in providing CD40-L polypeptides. More particularly this, invention provides isolated human and murine CD40-L polypeptides that bind to the extracellular binding region of a CD40 receptor. Specifically, the invention provides antibodies directed against CD40-L.
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 October 23, 1992 and granted November 19, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 23, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 23, 2014.
- 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.