Method of mending defective wood plate
CA 1263292 C · Owner: Koba, Yoshinori · Inventors: Koba, Yoshinori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of mending a defective wood plate uses instead of, putty, a solid patching material which is smaller in thicknesswise shear strength and compressive strength than the wood plate and is sized greater than a defect of the plate which is to be mended. The solid patching material is applied to the plate in such a manner as to cover the defect and, then, compressed in the thicknesswise direction to undergo shear fracture. As a result that part of the material, which overlies the defect is thrusted into the defect. The compression is effected in two consecutive stages one using a rigid, member and the other an elastic member. The part of the material filled in the defect is separated …
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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 28, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 28, 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.