Needless vial access device
CA 2092832 C · Owner: Graham, Peter L. · Inventors: Jepson, Steven C.; Graham, Peter L.; Dudar, Thomas E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cannula assembly adapted to pierce a solid or unslit closure is disclosed and includes a blunt cannula (50) and a piercing member (12) held in cooperation with or contained within the flow channel (62) of the cannula. Generally the piercing member in-, cludes a tip (14) capable of piercing an unslit stopper or closure and a means (36) to temporarily retain the piercing member from the cannula and prevent inadvertent disengagement of the piercing member from the blunt cannula.
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 July 9, 1992 and granted March 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 9, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 9, 2014.
- 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.