Expired Canadian patentCanada
Use of stem cell factor and soluble interleukin-6 receptor for the ex vivo expansion of hematopoietic multipotential cells
CA 2198603 C · Owner: Nakahata, Tatsutoshi · Inventors: Nakahata, Tatsutoshi
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Stem cell factor in combination with soluble interleukin-6 receptor interleukin-6, for gp130 signaling, supports the proliferation differentiation and terminal maturation of blood cells from normal human hematopoietic multipotential 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 November 16, 1995 and granted June 27, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 16, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 2017.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 16, 1995
GrantedJune 27, 2000
Term endedNovember 16, 2015
Patent numberCA 2198603 C
Classification (IPC)C12N5/07 +2 more
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.