Block process for a structure
CA 1089666 A · Owner: Kobayashi, Sosuke · Inventors: Kobayashi, Sosuke
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention discloses a novel building block and methods of building a wall or similar structure utilizing these novel blocks. Each of the building blocks has at least one horizontal surface on each upper surface and at least one horizontal surface on each lower surface ground smooth so that when the blocks are stacked one upon each other the at least one ground, surface of the lower surface of the upper block is contiguous with the at least one ground surface of the upper surface of the lower block thereby providing a tight joint between the respective blocks. This allows for the construction of a rigid block assembly eliminating the need for adhesive material such as mortar between …
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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 November 18, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 18, 1997.
- 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.