Interferon-like protein zcyto21
CA 2413258 C · Owner: Sheppard, Paul O. · Inventors: Haldeman, Betty A.; Gilbert, Teresa; Fox, Brian A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to polynucleotide and polypeptide molecules for Zcyto21, an interferon-like protein, which is most closely related to interferon-.alpha. at the amino acid sequence level. The present invention also includes antibodies to the Zcyto21 polypeptides and methods of using the , polynucleotides and polypeptides.
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 June 29, 2001 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 29, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 2023.
- 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.