Method of producing a decorative construction material
CA 2314895 A1 · Owner: Tikhonova, Nailia A. · Inventors: Tikhonova, Nailia A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of producing a resilient decorative construction material from waste products such as slag granulate or waste glass granulate is taught. A layer of material (10) comprising glass granulate slag granulate, or sand, or mixtures , thereof is placed in a heat-resistant mold (12). The mold (12) has a top (22), sides (24) and a bottom (20) which is preferably coated on the inner mold surface (18) with a fluid suspension of kaolin (13). The layer is thermally treated, and is initially heated so that a temperature gradient is established throughout the layer, with the first surface (14) having a first temperature no greater than the softening point and the second surface (16) , …
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 December 10, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 10, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 10, 2020.
- 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.