Expired Canadian patentCanada
Production of recombinant human interleukin-1 inhibitor
CA 2068320 C · Owner: Amgen Inc. · Inventors: Hageman, Robert; Eisenberg, Stephen P.; Cudny, Henryk
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for the production of commercial quantities of highly purified interleukin-l inhibitor (IL-1i) from a recombinant host is disclosed. A preferred recombinant E. coli host for sue in this method is also disclosed.
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 November 29, 1990 and granted October 17, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 29, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 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.
FiledNovember 29, 1990
GrantedOctober 17, 2000
Term endedNovember 29, 2010
Patent numberCA 2068320 C
Classification (IPC)C12N15/62 +2 more
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.