A riser-type transfer valve
CA 2279717 A1 · Owner: Tarzia, Umberto · Inventors: Tarzia, Umberto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A riser-type transfer valve includes a diverter body a diverter collar , threaded onto, the diverter body a valve actuator mounted for axial reciprocal travel concentric with the, diverter body and diverter collar a valve mounted on the valve actuator at the base, thereof for travel between a diverter body lower outlet valve seat and an upper outlet, valve seat whereby actuation of the valve actuator selectively opens and closes the lower, and upper valve seats an atmospheric vacuum breaker valve mounted for slidable travel, on the valve actuator concentric with the diverter collar at the upper end thereof, a closure, cap threaded into the upper end of the diverter collar the closure …
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 August 5, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 5, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 5, 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.