Process for the production of reinforced slabs of stone material and reinforced slabs obtained
CA 2195703 C · Owner: Technograniti Srl · Inventors: Toncelli, Marcello
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
By applying to the visible face of slabs of stone material (such as marble and granite), especially thin slabs, a reinforcing layer constituted by non-twisted glass threads preferably in , the form of a mat, and by a transparent resin resistant to the action of atmospheric and chemical agents a reinforced slab is obtained, which has a small thickness and in which the resistance to negative flexing is greatly increased, concomitantly with the resistance to positive flexing if the rear or , invisible, face of the slab is also reinforced.
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 January 22, 1997 and granted July 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 22, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 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.