Dense core charcoal briquet
CA 2179564 C · Owner: Burke, Kelly M. · Inventors: Burke, Kelly M.; Caddell, Jeffery P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A solid fuel briquet, such as a charcoal briquet for cooking which displays selected ignition and burn characteristics over a variety of shapes and compositions as well as a method for forming such a briquet are provided. The briquet is defined by an ignition phase of less than about 18 minutes preferably less than about 15 minutes and a burn phase of greater than about 35 minutes preferably 40 minutes and most preferably 45 minutes with respect to any desired briquet shape. The briquet is made by predensifying a coal portion of the briquet into pellets. The pellets are then blended with wood char and any other optional ingredients and compacted into briquets. The resulting briquet contains …
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 June 20, 1996 and granted August 15, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 20, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 20, 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.