Valve device
CA 2372311 A1 · Owner: Bailey, Patrick Warren · Inventors: Bailey, Patrick Warren
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A valve device for connecting a container filled with a flowable material to a receptacle and for dispensing the flowable material from the container, into the receptacle, the valve device including an outer sleeve having a first end to be, secured in the orifice of a container a second end for releasable attachment to a, receptacle and walls defining a generally cylindrical support passage extending from, said first end to said second end an inner sleeve within the support passage having, walls defining a generally outer surface adjacent the walls of the outer sleeve so as to, rotatably support the inner sleeve and defining an internal through passage and a, butterfly valve member …
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 February 21, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 21, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 21, 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.