Stopper assembly having bypass features for use in a multi-chamber syringe barrel
CA 2206065 A1 · Owner: Grimard, Jean Pierre · Inventors: Grimard, Jean Pierre; Jansen, Hubert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A stopper assembly having by-pass features for use in a multi-chamber syringe barrel. The stopper assembly includes a sequential stopper body responsive to fluid forces for enabling the sequential delivery of disparate contents such as disparate fluids, separately held in the syringe barrel. The sequential stopper body has a generally cylindrical sidewall with a distal end, a proximal end and a longitudinal axis therethrough. The stopper assembly also includes a generally cylindrical flow channelizer mounted to the distal end of the sequential stopper body. The flow channelizer enables the reconstitution of dry medicament held in the syringe barrel distally of the flow channelizer. The flow …
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 May 26, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 26, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 26, 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.