Compositions containing nucleases and chelators to enhance the recovery of cells during cell separating procedures
CA 2264885 A1 · Owner: Curtis, Joseph E. · Inventors: Macneil, Sean L.; Curtis, Joseph E.; Brewer, John C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides compositions and methods which either prevent cell clumps from forming, or removing clumps which have formed in cell , separating devices. The present compositions contain a nuclease divalent , cations, and chelating agents. Surprisingly nuclease activity is not , decreased in the presence of chelating agents. During cell separation procedures using the present composition cell yield, purity, and viability , are enhanced. Also kits for use with automated cell separating devices using these compositions are provided.
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 August 29, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 29, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 29, 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.