Composite building panel and method of making composite building panel
CA 2532736 C · Owner: Ecolite International, Inc. · Inventors: Smith, Brian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composite panel and method of fabricating is provided which includes a frame having a plurality of spaced apart frame members and a concrete slab made of , aerated concrete having a density of 400 to 1760 kg/m3 (25 to 110 pcf) pounds per cubic foot. Fastened to the frame members is a reinforcing layer. The concrete slab, having a front face and a rear face embeds the reinforcing , layer and a portion of the frame such that the frame protrudes from the rear face of the slab. At least one tab and one tab opening is disposed on an embedded portion of the frame, and the concrete slab extends through the tab opening.
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 July 21, 2004 and granted April 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 21, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 21, 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.