Method of detecting ligand or ligand-like low-molecular weight compound
CA 2399734 A1 · Owner: Nishimura, Tadahiro · Inventors: Ebara, Shinji; Taniyama, Tadayoshi; Kusano, Koji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of detecting a ligand or a ligand-like low-molecular weight compound from among test compounds characterized by separating a ligand-dependent cell line having a ligand receptor gene and an antibiotic resistance gene transferred thereinto from other cell lines culturing the cell line in the , presence of the test compounds and then examining the proliferation ability of the cells. Use of this method makes it possible to exactly screen a ligand (a physiologically active substance) or a low-molecular weight compound having the same action by a simple procedure.
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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 February 7, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 7, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 7, 2023.
- 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.