Container valve
CA 2339207 A1 · Owner: Veresk Biosystems Limited · Inventors: Taghavi-Khanghah, Said
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A container for dispensing liquids comprises a body member (2) and a closure (6) for the body member (2), the closure (6) including a cap (8) in the form of a plastic moulding having an outlet (12) and a control valve (22) within the cap (8) the control valve (22) being a one piece plastic moulding having a diaphragm portion (26) and a nose portion (28) the nose portion (28) normally , sealing the outlet (12) but being displaceable therefrom on distortion of the diaphragm portion (28) resulting from pressurisation of the interior of the body member (2) and whereby liquid is dispensed through the outlet (12) the , cap (8) further including an annular seating (20) for the control valve …
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 30, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 30, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2021.
- 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.