Canadian application, no grantCanada
Fluorophore-labeled cryopreserved cells for use as targets in cytotoxicity assays
CA 2045461 A1 · Owner: Nordstrom, Agneta K. E. · Inventors: Nordstrom, Agneta K. E.; Maley, Derrick T.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Biological cells which are fluorophore-labeled can be stored frozen for a long period of time. After thawing the cells can be used as targets in fluorophore-release cytotoxicity assays.
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 February 8, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 8, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 8, 1990
GrantedNo grant recorded
Term endedFebruary 8, 2010
Patent numberCA 2045461 A1
Classification (IPC)C12Q1/18 +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.