Valve stop
CA 2476623 A1 · Owner: Baxter International Inc. · Inventors: Swan, Julian F.R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dispensing valve (10) has a stop (20). The valve (10) has a surface (28) defining an opening (30). The stop (20) is adapted to be moveable between a first position abutting the surface (28) to seal the opening (30) and a second position spaced from the surface (28) to open the opening (30). The stop (20) is formed in an injection-molding process and has a base (52) adapted to be connected to the valve (10). A sealing member (54) is connected to the base (52) by a hinge member (60). The sealing member (54) has a frustoconical outer surface (62) and a sealing surface (66) at a distal end thereof. The sealing member (54) extends away from the base (52) in a first molded position (MP) …
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 December 5, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 5, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 5, 2024.
- 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.