Process and facility for manufacturing a composite plastic structure, such as floor covering
CA 2216662 A1 · Owner: Berenger, Daniel · Inventors: Berenger, Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for manufacturing a flat composite plastic structure e.g. floor covering, comprising a resistant textile web (2) and at least one layer (3) of plastic material such as polyvinyl chloride, impregnating the front or back of the textile web. This process involves taking (a) a resistant textile web (2) and (b) a plastisol (c) impregnating the textile web (2) with a layer of plastisol (6) (d) combustion of a combustible gas (5) in contact with a porous structure (4a) to obtain a radiant surface (4a); (e) the plastisol layer (6) is heated with the radiant surface (4a) to eliminate the volatile organic fraction of the impregnated layer and gelify the plastisol. The combustion of the …
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 18, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 18, 2019.
- 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.