Soft serve frozen confection dispenser
CA 2003442 C · Owner: Thomas, Donald J. · Inventors: Thomas, Donald J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus (10) is provided for dispensing soft serve frozen confections such as ice creams and yogurts. A collapsible container (22) impervious to liquids and having one outlet (24) of sufficient size to permit extrusions of frozen confection (23) into an outlet conduit (18) is adapted to contain a frozen confection (23). A compressive force, such as may be applied by a piston (60) moved in a cylinder (46) causes extrusion of the frozen confection (23) into the outlet conduit (18). A dispensing spigot (20) is connected to the outlet conduit (18) to permit service of the frozen confection (23).
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 21, 1989 and granted June 4, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 21, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2011.
- 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.