Small volume collection chamber
CA 2063262 C · Owner: West, Joseph C. Jr. · Inventors: West, Joseph C. Jr.; Dennehey, T. Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device and method are provided, for separating mononuclear cells from red blood cell depleted plasma in a centrifuge blood cell separator. The device includes an inlet (51) for receiving plasma, an area (63) for receiving mononuclear cells, and an outlet (53) for receiving mononuclear cell depleted plasma. The distance and flow path (65) between the inlet (51) and outlet (53) being so constructed and arranged as to cause mononuclear cells to sediment out into the area (61) for receiving the, mononuclear cells and causing at least 66 % of the platelets contained in the plasma to flow to and through the outlet.
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 April 1, 1991 and granted June 30, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 1, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 1, 2013.
- 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.