Methods and devices for the long-term culture of hematopoietic progenitor cells
CA 2304650 A1 · Owner: Rosenzweig, Michael · Inventors: Pykett, Mark J.; Kaplan, Richard B.; Rosenzweig, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention pertains to methods and devices for the long term in vitro , culture of hematopoietic progenitor cells in the absence of exogenously added hematopoietic growth factors, improved methods for the introduction of foreign genetic material into cells of hematopoietic origin and to apparatus for , performing these methods. The hematopoietic progenitor cells are cultured on a three-dimensional porous biomaterial. The three-dimensional porous biomaterial enhances hematopoietic progenitor cell survival and leads to an expansion of progenitor cell numbers and/or functionality while maintaining progenitor , cell pluripotency in the absence of exogenous growth factors. In addition …
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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 September 25, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 25, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 2020.
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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.