Process for freezing an inorganic particulate slurry or suspension
CA 1185081 A · Owner: Ramu International A Partnership · Inventors: Blasch, Earl B.; Smith-Johannsen, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a process of freezing an inorganic particulate or a ceramic slurry containing a freeze sensitive ceramic colloidal sol in the presence of lithium ions contained in the slurry or suspension in an amount sufficient to inhibit ice crystal growth with or without supercooling. The invention further includes composite inorganic structures which are in the nature of laminates where at least one inorganic structure such as a zirconia plate, is adhered to a different inorganic structure, such as an alumina plate.
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 April 9, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 9, 2002.
- 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.