Composition for the production of artificial marble or granite
CA 2058237 A1 · Owner: Renzi, Fiorenzo · Inventors: Traverso, Enrico; Renzi, Fiorenzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
ES 4177, "COMPOSITION FOR THE PRODUCTION OF ARTIFICIAL MARBLE OR GRANITE", Abstract, A description follows of a composition for the production of artificial marble or granite, with excellent aesthetical properties and patterns and tonalities which cannot be found in natural materials, containing one polimerizable poly(allyl carbonate) of a polyol and a mineral filler where the mineral filler is of the carbonate type, in the case of marble and, silicate or silica type, in the case of granite and is in the, form of particles of which at least 40% to 100% by weight has a particle size higher than 0.5 mm. A procedure is also described for the production of artificial marble and granite. The …
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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 20, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 20, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2013.
- 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.