Method for manufacturing recycled wood product
CA 2459783 A1 · Owner: Gotou, Shinji · Inventors: Gotou, Shinji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A technique for producing a lumber having a large cross section by reclaiming waste wood without using any harmful substances as a binder of the lumber. Mist of a polymer agent containing as a main component a natural component is sprayed onto a wood material of small wood pieces. The sprayed material is placed in a line, and pressurized and heated in a high-pressure atmosphere so as to polymer-bond the neighboring wood material pieces into a recycled lumber. The polymer agent contains as a main component e.g. tannin. Means , for applying the polymer agent can be used in stead of the mist spray. After the step of bonding the neighboring wood material pieces a curing step of , curing …
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 31, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 31, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 31, 2024.
- 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.