Ice mould and method of ice sculpture
CA 1300386 C · Owner: Lipke, Vivienne · Inventors: Lipke, Cecil Walter; Lipke, Vivienne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mould assembly for moulding ice sculpture and having complementary mould members defining an open topped mould cavity, a water impervious flexible mould liner conforming to the interior of the cavity and a thermally insulating cover adapted to close the open top of the cavity. Means are provided to vary the rate of heat transfer through the mould members between different areas of the mould members such that the relative rate of freezing of the water adjacent the different areas is controlled.
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 May 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 2009.
- 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.