Fluid dispensing closure
CA 2309568 A1 · Owner: Rieke Corporation · Inventors: Beaver, Jeffrey L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fluid dispensing closure which incorporates a dispensing valve to control fluid flow through the closure and a vent passageway to vent air into the container as necessary. The closure includes a dispenser spout offset from the axis of the closure and capable of mating engagement with a receiving container. The dispenser spout has a fluid passageway with a spring-biased ball valve seated therein. A vent passageway is also formed in the closure which includes a gravity loaded ball valve to close the vent passageway according to the position of the closure. A removable overcap sealingly encloses the dispenser spout and vent to capture any fluid leakage.
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, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 26, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 26, 2022.
- 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.