Method for manufacturing ice containing carbondioxide
CA 1308561 C · Owner: Koma, Norihiko · Inventors: Koma, Norihiko; Yamauchi, Yutaka; Ebinuma, Takao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for manufacturing ice containing carbon dioxide comprising a process wherein ice grains or water as material used for forming ice containing carbon dioxide is charged into a pressure vessel, a process wherein the material is enveloped in an atmosphere of carbon dioxide and a process wherein the temperature and pressure of the material is adjusted to within the range in which clathrate hydrates of carbon dioxide are included in ice; a method for manufacturing ice containing carbon dioxide comprising a process wherein carbonic acid water is charged into a pressure vessel, and wherein the temperature and pressure inside the pressure vessel are adjusted to within the above range; and a …
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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 October 13, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 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.