A wood board and a flooring material made therefrom
CA 2124668 C · Owner: Yamaha Corporation · Inventors: Suzuki, Satoshi; Takahasi, Hirotosi; Iwata, Ritsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a wood board and a flooring material using this, which uses thin wooden strands as a raw material has superior surface smoothness, and possesses sufficient strength and rigidity. The wood board in accordance with the present invention comprises a core layer 1 comprising a strand board and a surface layer 2 comprising a oriented strand board which is laminated on at least one surface of the core layer 1; the surface layer 2 comprises thin wooden strands which are thinner than the thin wooden strands comprising the core layer and furthermore, the flooring material of the present invention is obtained by laminating a decorative single sheet onto at least one of …
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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 May 30, 1994 and granted June 1, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 30, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 30, 2016.
- 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.