Method and device for separating pieces of wood
CA 2060845 C · Owner: Andritz-Patentverwaltungs-Gesellschaft M.B.H. · Inventors: Geiger, Bertram; Grabher, Rainer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for separating pieces of wood into different qualities in a wood sorting process is characterized in that the brightness as well as the texture of the surface of the wood are measured and the, pieces of wood are separated into different quality groups according to the measurements results obtained.
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 February 7, 1992 and granted September 12, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 7, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 7, 2014.
- 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.