Human lens epithelial cell line
CA 2201216 A1 · Owner: Senju Pharmaceutical Co. Ltd. · Inventors: Ibaraki, Nobuhiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A human lens epithelial cell line capable of expressing an exogeneous immortalizing gene, which is established without infecting with a live virus. A method for producing the human lens epithelial cell line, which comprises transfecting human lens epithelial cells with an expression vector functionally carrying an exogeneous immortalizing gene, and subculturing said cells in a medium. The above-mentioned human lens epithelial cell line wherein the cells proliferate in a temperature sensitive manner. A method for producing a temperature sensitive human lens epithelial cell line which comprises transfecting human lens epithelial cells with an expression vector functionally carrying an …
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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 March 27, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 27, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2019.
- 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.