Human interferon- 4-134, functional equivalents thereof and methods of using and compositions employing these materials
CA 2090478 A1 · Owner: Schering Corporation · Inventors: Lundell, Daniel J.; Narula, Satwant K.
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 human interferon-.gamma.(Hu IFN.gamma.)4-134 and functional equivalents thereof and to methods of using and compositions employing these materials. Hu IFN.gamma.4-134 possesses virtually none of the antiviral activity of HU IFN.gamma.4-137, yet retains essentially all of the antigen-induction effect of Hu IFN.gamma.4-137.
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 August 29, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 29, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 29, 2013.
- 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.