Woodroom effluent treatment system
CA 1250510 A · Owner: Saalasti, Timo T. · Inventors: Saalasti, Timo T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Effluent treatment for the woodrooms of wood processing industries, e.g. paper and pulp mills wherein the water separated from the bark and containing fibres is passed back onto an existing conveyor of wet bark, provided with a perforated bottom so that some, of the fibre contained in the water is filtered and mixed with the bark and passes along with the bark to dewatering.
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
- Granted February 28, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 28, 2006.
- 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.