Method for the production of composite panels based on ornamental stone or an equivalent material
CA 2069512 C · Owner: Tecnomaiera S.R.L. · Inventors: Marocco, Giuseppe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a first step of the method, a pack (P) of slabs is formed by positioning successive layers constituted by ornamental slabs of stone or equivalent material alternating with supplementary layers constituted by slabs or sheets in succession on a support base (10). A liquid-tight container (C) is then formed around the pack (P). A peripheral space is left in the container (C) at least around the edges of the layers of the pack (P). The interior of the container (C) is then subjected to a vacuum and a settable fluid binder, such as a thermosetting synthetic resin is introduced into the container whilst it is under vacuum so that the binder fills the whole of the peripheral space, penetrates …
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 November 26, 1990 and granted December 22, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 26, 2012.
- 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.