Glazing provided with stacked thin layers which reflect infrared rays and/or solar radiation
CA 2530652 C · Owner: Belliot, Sylvain · Inventors: Belliot, Sylvain; Brochot, Jean-Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to glazing comprising at least one transparent substrate such as glass, which is provided with stacked thin layers. The aforementioned stacked layers comprise from the substrate upwards, at least: (a) one first dielectric layer comprising a layer forming a barrier to the diffusion of oxygen which is selected from among silicon nitrides; (b) a lower stabilising metal layer which is made from a metal or alloy X; (c) a functional layer with reflecting properties in infrared and/or solar radiation in particular a metal layer; (d) an upper blocking metal layer which is made from a metal or alloy Y; (e) a second dielectric layer comprising a layer forming a barrier to 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 June 25, 2004 and granted August 13, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 25, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2026.
- 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.