High-strength battenboard
CA 2194793 A1 · Owner: Grenier, Raoul · Inventors: Grenier, Raoul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
As a construction material, high-strength battenboard has mechanical and physical properties which are much superior to conventional wood and it can compete with the best performing engineered wood on the North American market. In this invention the wood characteristics and the design of the product are optimized to meet high performance standards. The high-strength battenboard is prepared from species of Quebec conifer that have the highest fibre density in North America. The first step is to remove those features that detract from strength and stability such as knots, wanes, rot, checks, deviation of the grain and compression. Second, the surfaces to be glued are planed to a very high …
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 January 9, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 9, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 9, 2019.
- 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.