Panel unit
CA 1308874 C · Owner: Grilli, Tellio J. · Inventors: Germaine, Graeme B.; Mcmichael, Ian A.; Brookes, Alan J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A building panel is disclosed having substantially quadrilateral shape wherein two edge surfaces have tongue members and two edge surfaces have groove members. Preferably, the edge surfaces with tongues are adjacent surfaces and the edge surfaces with grooves are adjacent surfaces. Preferably the, panel is a laminate having a core of insulating material laminated on both sides with metallic skins. Walls constructed from such panels have reduced fire hazards.
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
- Granted October 20, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 20, 2009.
- 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.