Method for producing a floor covering with natural or synthetic wood facing and resulting product
CA 2329609 A1 · Owner: Tarkett Sommer S.A. · Inventors: Roussel, Albert; Delcroix, Ludovic
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for making a floor covering in the form of panels characterised in that it consists in assembling in one step a back (1) acting as balancing rear face an intermediate layer (10) for forming the flooring core and which is substantially made of a mixture of fine organic particles and thermosetting and non-cured powder glue a thermoplastic sheet (20), a decorative facing (3) and a sheet (4) designed to constitute the top surface made of a thermosetting material the whole assembly being maintained at a temperature ranging from 120 to 200 ·C for a pressure ranging between 30 and 150 kg/cm?2¿ so as to cause the glue to set.
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 March 17, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 17, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 17, 2021.
- 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.