Composite wood construction members having a textured surface and apparatus and method for producing same
CA 2402087 A1 · Owner: Griffiths, Thomas · Inventors: Almeida, Carlos M.; Griffiths, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A member made from a composite wood material has an elongated body having at least one outer surface and opposed side edges and a plurality of grooves formed on the outer surface. An apparatus for forming a textured surface on a member comprises a frame, a tool bit driving mechanism supported by the frame and a tool holder connected for lateral movement to the driving mechanism and adapted to be supported over a surface of the member. At least one tool bit is mounted to the tool holder. The driving mechanism moves the tool holder such that the tool bit forms grooves on the surface of the member as the member moves past the apparatus. A method of forming a friction-enhanced surface on a …
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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 September 9, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 9, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 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
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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.