Slide fastener and fastener elements therefor
CA 2011944 C · Owner: Yamaguchi, Yoshiharu · Inventors: Horita, Yoshiyuki; Kikukawa, Norio; Sugimoto, Yasuhiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides fastener elements for use in a slide fastener in which, regardless of the quality of material a metallic coating layer, having an excellent adhesiveness and 0.001 to 1.0 mu m in thickness is simply and easily formed on the surface of a fastener element member so that the surface thereof gives out the luster of metal. The surface of the metallic coating layer may further be formed at least thereon with a finishing coat layer. In the present invention there is further provided a slide fastener having a light weight and flexibility in which such a fastener element member as being made synthetic resin having the luster of metal on the surface thereof.
Read the whole patent
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 March 12, 1990 and granted February 20, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 12, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2012.
- 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.