Freezing plant for food products
CA 1107522 A · Owner: Frigoscandia Contracting Ab · Inventors: Andersson, Gustaf A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Arrangement in a freezing plant comprising, a combination of a conventional freezer (2) and a precool unit (3). The arrangement (14, 16) is connected between the freezer and the precool unit in such a way that the mount of air in the freezing plant is maintained substantially constant without any reaction with the ambient atmosphere.
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 August 25, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 1998.
- 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.