Wall element for the dry construction of walls
CA 2031077 A1 · Owner: Winkler, Bernhard · Inventors: Steiner, Alfred; Winkler, Bernhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wall element consists of a ground wall with a shield that is placed on it perpendicularly and side walls extending laterally from the shield to the rear. In high walls that can be 7 meters or higher, in order to withstand the high static load that exerts force on the ground wall the side walls are formed in such a manner that their upper front surfaces are situated above the groove-shaped recesses located in the bottom surface of the ground wall so that the load is transferred only via the side walls and prevents the side walls from collapsing.
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 29, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 29, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 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.