Method for producing a heterologous secreted protein from chinese hamster ovary cells grown on microcarriers
CA 2383767 A1 · Owner: Ihey, Tom · Inventors: Ihey, Tom; Cunningham, Mark
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 method for producing a heterologous secreted protein from transformed CHO cells grown on microcarriers in a serumfree cell culture medium. This method avoids a production lag phase when switching from a serum-containing to a serum-free environment a problem , observed in the mammalian adherent cell culture production of secreted proteins.
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 September 1, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 1, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 1, 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.