Liquid measuring and dispensing container
CA 2082124 A1 · Owner: Labonte, Jean-Pierre · Inventors: Labonte, Jean-Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A squeeze container has a flexible and resilient sidewall and a top mouth closed by a cap through which a measuring tube extends into the container to terminate adjacent the container bottom wall. A normally-closed check valve is fitted to the tube bottom end to allow liquid in the container to enter the tube in a measured quantity when the side wall is squeezed and for retaining the measured quantity of liquid when the tube sidewall is released. The measured liquid in the tube is discharged when the container is inverted and squeezed. After liquid discharge outside air is, admitted within the container to nearly re-establish atmospheric pressure, either through the measuring tube or …
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 November 4, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 4, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 2014.
- 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.