Method for making agglomerated structural products from long, thin, narrow, green wood
CA 2015370 C · Owner: Liska, Frank Frantisek · Inventors: Liska, Frank Frantisek; Liska, Frank Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
High quality agglomerated structural boards lumber and other, structural members such as I U, T, L beams or corrugated, plates or moldings are produced from engineered long thin narrow, green wood strands. Process in which the parallel alignment, of the strands to each other and their original starting orientation are maintained through their transportation drying, blending, forming and pressing preventing their intermingling, twisting warping and breaking. The application of fungicides pesticides, fire retarding and other chemicals during the blending process, impregnates or colors the agglomerated structural products throughout their cross section making the products, resistant against …
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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 April 25, 1990 and granted June 23, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 25, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 25, 2012.
- 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.