Method for cooling carcasses
CA 2083805 C · Owner: Liquid Carbonic Inc. · Inventors: Engler, Sid; Palbiski, Clay
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for chilling carcasses which comprises the steps of introducing a cryogenic fluid into a rotatable drum of a meat tumbler, the drum having inner walls which are cooled by the cryogenic fluid; placing carcasses to be chilled inside the drum; and rotating the drum so that the carcasses contact each other and the inner walls until they are chilled to a sufficient degree. The cryogenic fluid cools the drum to a temperature of approximately 32°F. A small quantity of water may be introduced into the drum of the tumbler either immediately before or immediately after the introduction of the cryogenic fluid. The water forms an ice layer on the inner walls to prevent the carcasses from …
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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
- Filed November 25, 1992 and granted April 28, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 25, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 25, 2014.
- 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.