Apparatus for dispensing flowable material from a pouch
CA 2081668 C · Owner: Wirsig, Ralph Carl · Inventors: Wirsig, Ralph Carl; King, David Campbell
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dispenser of flowable materials from a pouch is disclosed. The pouch has an ear (55) at each of the ends of a transverse seal (53) located at one end of the pouch (57) The dispenser comprises i) a , cylindrical container (33) having sides and an open top having a rim, the container being adapted to contain the pouch and ii) a , lid (35) attachable to the rim such that the lid is adapted to trap the ears of the pouch between the lid and the rim and to keep said end of the pouch taut between the ears when the lid is attached to the rim. The lid is also being adapted to allow a spout (41) to pierce the pouch at the taut portion.
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 April 26, 1991 and granted July 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 2013.
- 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.