Corneal endothelium-like sheet and method of constructing the same
CA 2483659 A1 · Owner: Ishino, Yutaka · Inventors: Sano, Yoichiro; Kinoshita, Shigeru; Ishino, Yutaka
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 a transplantation material applicable to treatments of various diseases with a need of corneal endothelium transplantation. Corneal endothelial cells are collected proliferated, then sowed on amnion , and cultured. Thus a corneal endothelium-like sheet, which has a cell layer made up of the corneal endothelium-origin cells formed on the amnion can be , obtained.
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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 13, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 13, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 13, 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.