Wood smoking-seasoning method
CA 2218501 C · Owner: Sugaoka, Hitoshi · Inventors: Sugaoka, Kenji; Sugaoka, Taku; Sugaoka, Hitoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
WOOD SMOKING-SEASONING METHOD comprising a furnace is set to the floor section where wastes such as wood chips, scrapped wood, or wood pieces are put flammable, wastes such as planer chips plane chips, bark, branches and, leaves or waste paper are arranged as an ignition material so as to cover the upper and lower sides of the wastes and several resistant steel lids are lain one upon another on the upper side of the furnace so that heat and smoke can pass through the gap between the lids, and therefore the ignition material is ignited fire, expands on the whole surface and inside combustion material is burned keeping the central portion of green-wood stacked on the upper side in a range of …
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 September 30, 1996 and granted February 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 30, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 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.