Biodegradable microparticles with novel erythropoietin stimulating protein
CA 2387229 A1 · Owner: Amgen Inc. · Inventors: Murphy, Keith; Burke, Paul; Herberger, John
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 a composition for the sustained release of biologically active, novel erythropoietin stimulating protein (NESP) and , improved methods of forming said composition. The composition comprises polymeric microparticles within which particles of NESP have been dispersed. The improved method utilizes a cosolvent mixture to effect more efficient and rapid removal of residual polymer solvents during any drying process.
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, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 23, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 23, 2022.
- 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.