Ice-cream maker
CA 1280000 C · Owner: Ramusch, Wolfgang · Inventors: Bukoschek, Romuald Leander; Schroder, Johann; Ramusch, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Ice-cream maker. In an ice-cream maker with a cylindrical container (1), into which a discoid cold cartridge (3) is insertable, and with an electric motor (4) which, via a gear unit (5) drives a shaft (6) running central to the container, said shaft bearing a scraper and stirrer tool (8) acting at least together with the cold cartridge, the cold cartridge is provided around its circumference with a continuous projecting edging (10) and the container is provided around its circumference with a stepping (11) projecting into the inside of the container, on which a cold cartridge inserted into the ice-cream maker lodges on its projecting edging provided whereby at least the wall (12) facing …
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
- Granted February 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 2008.
- 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.