Polypeptide inhibitors of gamma interferon
CA 2070416 A1 · Owner: Schering Corporation · Inventors: Ingram, Richard; Le, Hung V.; Ramanathan, Lata
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel synthetic polypeptides comprising the amino acid subsequence Arg-Arg-Lys-Trp-Gln are provided by this invention. Also provided are methods for the use of such polypeptides other known, polypeptides containing such subsequence and a variety of acidic or basic polypeptides and proteins as inhibitors of the binding of gamma interferon to its cellular receptors. The methods of this invnetion are potentially applicable to the treatment of pathological conditions believed to be mediated by gamma interferon such as, autoimmune disease.
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 19, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 19, 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.