Primitive and proximal hepatic stem cells
CA 2479510 C · Owner: Moss, Nicholas G. · Inventors: Bruce, Andrew T.; Reid, Lola; Furth, Mark E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hepatic progenitors comprise two populations of human hepatic stem cells primitive and proximal hepatic stem , cells and two populations of committed progenitors one for biliary cells and , one for hepatocytes. Human primitive hepatic stem cells are a very small fraction of the liver cell population and give rise to proximal hepatic stem cells constituting a much larger fraction of the liver. Human proximal hepatic stem cells give rise to biliary and hepatocyte committed progenitors. Primitive and proximal stem cells are the primary stem cells for the human liver. Human primitive hepatic stem cells may be isolated by immunoselection from human livers or culturing human liver cells …
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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 14, 2003 and granted October 29, 2019. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2025.
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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.