Structure panel and method of connecting same
CA 2274170 A1 · Owner: Shimonohara, Takeshige · Inventors: Shimonohara, Takeshige
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A structure panel comprises a concave connection member (2) embedded in an upper end surface of a panel body (1), a cylinder body (3) internally provided to extend from a bottom surface of the concave connection member to a lower end surface of the panel body, and a convex connection member (4) held in the cylinder body. After the panels are arranged vertically the convex connection , member held in the cylinder body of the upper-stage structure panel is made to descend to engage with the concave connection member of the lower-stage structure panel. Thus the upper and lower panels can be connected to each other. Accordingly, it is possible to perform installation in a short time …
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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
- Filed October 8, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 8, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 8, 2019.
- 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.