Flush syringe having compressible plunger
CA 2501933 C · Owner: Becton, Dickinson And Company · Inventors: Hottovy, Tracy Ray; Timko, James John; Alheidt, Thomas A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An I.V. flush syringe assembly includes a barrel 22 having an inside surface 32 defining a chamber 33 for retaining fluid an open proximal end 28 and a , distal end 30 with a passageway 38 therethrough in fluid communication with the chamber 33. An elongate plunger 24 having a proximal end 50 a distal end , 52 and a stopper 54 is slidably positioned in fluid-tight engagement with the inside surface 32 of the barrel 22 for drawing fluid into and out of the chamber by movement of the stopper 54 relative to the barrel 22. The plunger 24 includes anti-reflux structure for minimizing stopper deflection when fluid has been delivered from the chamber 33 and the stopper 54 is being forced …
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 September 23, 2003 and granted June 18, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 23, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2025.
- 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.