Compound glass element
CA 2029148 C · Owner: Visionwall Corporation · Inventors: Grether, Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an edge connection for the panes (1 2) of a, compound glass element there is provided a spacing profile (3) which preferably consists of a poorly heatconductive plastic material. This is adhered between the panes with a contact adhesive (4). As a vapourbarrier, a band (5) of a thin flat metal foil is applied around the exterior of the spacing profile. The outer surface (3.1) of the spacing profile is inwardly offset with respect to the flat metal band in the edge regions adjacent the panes, in such a way that peripherally running chambers (6) are created. These chambers are filled with a vapour-proof adhesive, preferably butyladhesive.
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 1, 1990 and granted February 6, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 1, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 1, 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.