Scaffold plank
CA 1259364 A · Owner: Kuroda, Shigeharu · Inventors: Kuroda, Shigeharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel scaffold plank is provided herein. It includes an elongated rectangular tubing means, such elongated rectangular tubing means providing a plurality of rectangular passages each of, which extend longitudinally of such elongated rectangular tubing means, such rectangular passages being transversely spaced from each other; at least one layer of covering member enclosing such elongated rectangular tubing means; and a respective end member mounted to each of the two opposite ends of such elongated rectangular tubing means, each of the end members including a plurality of plug portions which are substantially rectangular in cross-section, the plurality of plug portions being transversely …
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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 September 12, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 12, 2006.
- 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.