Reactor for wood retification
CA 2337357 A1 · Owner: Guillin, Dominique · Inventors: Guillin, Dominique
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns the technical sector of transforming wood by torrefaction of wood material of plant origin. More particularly it concerns a reactor characterised in that it comprises: a sealed chamber operating discontinuously; means for high stirring (10 12) of the atmosphere for heating the wood; a loading system whereon the wood is maintained under "ongoing and adaptable" mechanical stress (9 14). Said reactor provides an industrial method for crosslinking wood.
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 July 13, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 13, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 13, 2021.
- 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.