Expired Canadian patentCanada
Resin treated liquid smoke compositions
CA 2008308 C · Owner: Underwood, Gary L. · Inventors: Underwood, Gary L.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to high, browning reduced phenol and basic constituent liquid smoke compositions and a process to make these compositions. These compositions are useful for coloring and flavoring edible foodstuffs.
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
- Filed January 23, 1990 and granted June 23, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 23, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 23, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 23, 1990
GrantedJune 23, 1998
Term endedJanuary 23, 2010
Patent numberCA 2008308 C
Classification (IPC)A23B4/04 +1 more
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.