Building member
CA 2098308 A1 · Owner: Larsen, Peter Wimmelmann · Inventors: Larsen, Peter Wimmelmann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A building member (1) comprises a load bearing element (4 6), comprising a strip of compressed mineral wool having a density of at least 50 kg/m3. The load bearing elements may form a frame element of a wall panel which further comprises a central insulating zone (9) of relatively less compressed mineral fibre facing, layers of sheet material and (2 3) extending across the surface of , the panel and sandwiching the mineral fibre load bearing element. The facing layers are bonded to the load bearing elements and, if desired, the insulation in the central zone using bonding, agent which cures whilst the sandwich of materials is subjected to compression, for instance whilst being vibrated.
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 December 12, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 12, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 12, 2013.
- 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.