Elements for constructing a three-dimensional structure
CA 1302043 C · Owner: Shima, Hiroshi · Inventors: Shima, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention discloses elements for constructing a three-dimensional structure, comprising beams that make edges, polygonal plates that make faces and joints with arms that connect said beams and/or polygonal plates with each other so that a desired structure is formed wherein the, end of said joint arms is formed into a spherical shape and bearings which have a grasping means for said spherical end of said joint arms are provided to said beams and polygonal plates so that any of said bearings can be engaged or disengaged with it freely; said joints are formed into at least two shapes from an elastic material so that they can be used singly or in conjunction with the other in connecting …
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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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 2009.
- 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.