Selective expansion of target cell populations
CA 2221433 A1 · Owner: T. Breeders, Inc. · Inventors: Friberg, Jill; Kraus, Morey; Wilder, Paul T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a method of selective expansion of a predetermined targetpopulation of cells including (a) introducing a starting sample of cells into a growth medium; (b) causing cells of the predetermined target cell population to divide; and (c) contacting the starting cells with a selection element comprising a plurality of selective binding molecules with specific affinity either for target cells or for non-target cells to select cells of said predetermined target population from other cells in the growth medium. The invention also provides systems for selective expansion and methods of treating patients with cell populations and products.
Read the whole patent
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 18, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 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.