Endocrine cell lines and method of using the same
CA 2482915 A1 · Owner: Nishi, Tatsunari · Inventors: Nishi, Tatsunari; Kishimoto, Kazuya; Suzuki, Misako
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
It is intended to provide: (1) various cell lines originating in mammalian hypothalamus and pancreatic islet; (2) an expression cloning system of an active peptide precursor gene using such a cell line as a host and a process for producing an active peptide; (3) a method of searching for a substance acting on the cells and a method of evaluating the same with the use of the above cell line; (4) a method of searching for a useful gene or a useful peptide and a method of acquiring the same with the use of the above cell line; and (5) a highly sensitive and convenient GPCR ligand assay system to be used in the above expression cloning system.
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 April 16, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 16, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 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.