Venous reservoir bag assembly
CA 2044666 C · Owner: Stewart, Rodger Lee · Inventors: Reed, Barry Douglas; Scibona, Joseph Andrew; Dalke, William Dean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A venous reservoir bag subassembly is provided which is adapted to cooperate with a back plate and front plate reproducibly relatively movable to enable constant accurate blood volume readout, cooperating electrical means between the subassembly and the plate assembly to provide failsafe against unduly low blood volume, and angled conduit means cooperating with recesses in the plate assembly to counteract undesirable gas.
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 June 14, 1991 and granted January 5, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 14, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 14, 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.