Dispenser having removable container
CA 2281689 A1 · Owner: Kaufman, John G. · Inventors: Kaufman, John G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dispenser for liquids is provided having a container including a bottom opening and an envelope structure surrounding the container. A bottom wall on the envelope structure is adjacent the bottom opening so that liquid from the container will collect in the envelope structure about the bottom opening. A dispensing passage is coupled to the envelope structure and leads from inside the envelope structure below the bottom opening upwardly and terminates outside the envelope structure. At least a portion of the envelope structure is resiliently deformable for deflection to create pressure in liquid in the envelope structure to thereby cause liquid to exit through the dispensing …
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 January 2, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 2, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 2, 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.