Tube squeezing apparatus
CA 2237733 C · Owner: Marleau, Gilles · Inventors: Marleau, Gilles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a novel apparatus for pushing contents contained within a flexible, collapsible tube in which the tube has a dispensing end and a bottom end. The apparatus comprises an elongated aperture situated within a utensil used with the contents wherein the aperture is constructed so as to receive the bottom end and bear against an outside surface of the tube thereby moving the contents towards the dispensing end.
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 14, 1998 and granted February 8, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 14, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 2020.
- 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.