Non-slipping artificial stone
CA 2418326 A1 · Owner: Yamanashi, Sumiyo · Inventors: Saito, Kenichiro; Sakai, Mieko; Yamanashi, Sumiyo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel artificial stone which contains an inorganic aggregate and a resin and has an uneven surface wherein the inorganic aggregate is exposed characterized in that the average depth of concave grooves of the surface is in the range of 0.02 mm to 1.0 mm and the volume percentage of the inorganic aggregate is 25 % to 75 %. The artificial stone has an elaborate structure exhibits transparent and deep sense, has excellent massive feeling and color like a marble, has a high surface hardness exhibits good formability, and , exhibits excellent non-slip performance even when it is contacted by bare feet or by hard soles of shoes.
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 August 1, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 1, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 1, 2023.
- 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.