Liquid dispenser
CA 2233141 C · Owner: Ellis, Simon Richard · Inventors: Ellis, Simon Richard; Bunschoten, Gerrit Klaas; Vreeman, Jan Arend
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a dispenser for delivering aliquots of a liquid product comprising a housing (1) and a disposable refill package which is positioned inside the housing (1) and comprises a collapsible reservoir (2) for the liquid product fitted with a bellow pump (3) whereby the bellow pump (3) , comprises a product inlet valve (4) and a product outlet valve (5) and is manually operable via indirect actuating means (10 11), and whereby the , housing (1) is provided with a narrow opening (9) into which a correspondingly shaped portion of the bellow pump (3) located near the outlet valve (5) thereof, can be detachably secured, characterised in that the bellow pump (3) is equipped with …
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 October 11, 1996 and granted February 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 11, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 11, 2018.
- 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.