A cushioning composite molded article and a process for production thereof
CA 2102608 C · Owner: Kabushiki Kaisha Kobe Seiko Sho · Inventors: Koseki, Toshinori; Kanno, Syoichi; Maeda, Kunio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a cushioning composite molded article obtained by forming a cushioning material having a surface material on a rigid substrate integrally, and a process for producing said composite molded article by a simple procedure involving a small number of steps for production and, when a rigid-resin molded product is set in a mold and an expandable elastomer is injected after, which the inside of the mold is enlarged to expand the substance, the expanded elastomer becomes a cushioning material and its skin layer becomes a surface material and the formation of them and the union in a body of them and the rigid substrate, i.e. the rigid-resin molded product can be …
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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 March 10, 1993 and granted March 25, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 10, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 10, 2015.
- 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.