Process and plant for the continuous production of particleboards
CA 2132230 C · Owner: Bielfeldt, Friedrich B. · Inventors: Bielfeldt, Friedrich B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process and a plant for the continuous production of particleboards and fiberboards in which, a particle mat of a mixture of large-area oriented wood particles and a phenolic resin binder is scattered onto a conveyor, moistened with steam, preheated and, pressed between heated press platens of a continuously operating press using pressure and heat to form a particleboard or a fiberboard.
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 September 16, 1994 and granted June 20, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 16, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 16, 2016.
- 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.