Ice cream freezer
CA 1264952 C · Owner: Nippon Light Metal Company, Ltd. · Inventors: Uesaka, Susumu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to an apparatus comprising a double walled container in which a heat regenerating agent is sealed, a heat insulating ring mounted on the upper periphery of said double walled container a supporting, shoulder located on the external periphery of said heat insulating ring, an engaging portion located at the lower periphery of said supporting shoulder, and a mating portion located on a cover for detachably mounting in engageable mating portion provided in a handle projecting from said external case.
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 January 30, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 2007.
- 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.