Device for concentrating solutions
CA 1266611 C · Owner: Ruijten, Henri M. · Inventors: Van Amsterdam, Peter H.; De Bree, Hans; Ruijten, Henri M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a device for concentrating solutions by partly freezing-out solvent consisting of a, vessel surrounded laterally by an insulated cooling jacket, the vessel comprising a stirring means and a draining aperture at the bottom. The cooling jacket does not extend down to the lowermost portion of the vessel. The lowermost portion of the vessel in which the stirring means and the draining aperture are accommodated exter-, nally comprises, preferably is surrounded by a heating, medium.
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 March 13, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 13, 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.