Vector for expressing recombinant protein and cho cells transfected with same
CA 2672809 C · Owner: Kallmeier, Robert · Inventors: Gay, Robert; Kallmeier, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mammalian expression vector comprising at least a first transcription unit having a gene product under control of a mCMV promoter or a functional fragment thereof; and a second transcription unit having a glutamine synthetase (GS) marker gene is provided. The invention also provides CHO cells transfected with same.
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 July 21, 2003 and granted January 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 21, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 21, 2025.
- 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.