Tar-depleted liquid smoke and method of manufacture
CA 2218928 C · Owner: Hickory Specialties, Inc. · Inventors: Moeller, Patrick W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tar-depleted liquid smoke having total water miscibility, and related method for making same. The tar-depleted liquid smoke may be made from commercially existing liquid smoke products, for instance by treating , such a commercial product with a column filtration process using activated carbon particles packed in the column. The resultant tar-depleted liquid smoke typically will have a phenols reduction of about lot to about 90% compared to the commercial starting product of liquid smoke. In an alternative embodiment, the tar-depleted liquid smoke made from carbon contact is then vacuum concentrated so that it has a phenols content greater than that of the commercial starting …
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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 April 26, 1996 and granted December 6, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 2018.
- 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.