Purification of recombinant beta-interferon incorporating rp-hplc
CA 1295087 C · Owner: Shaked, Ze'Ev · Inventors: Hershenson, Susan; Shaked, Ze'Ev
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
RP-HPLC methods for purifying recombinant beta-interferon are disclosed that employ wide-pore, silica-gel reverse-phase high performance liquid chromatograph (RP-HPLC) columns and solvent systems containing acetonitrile as the organic modifier and either heptafluorobutyric acid or trifluoroacetic acid as the organic acid. The invention further concerns processes for purifying recombinant IFN-.beta. incorporating this RP-HPLC method.
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
- Granted January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 2009.
- 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.