Insert molded article, and apparatus and method for producing the insert molded article
CA 2130925 C · Owner: Yamazaki, Seiichi · Inventors: Yamazaki, Seiichi; Okuno, Shiroh
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 method and apparatus for producing insert molded articles. The method is comprised of the steps of preforming a patterned insert material clamped at end parts thereof by a clamping unit into a predetermined shape corresponding to the shape of a cavity formation face of a male die or a female die of an injection molding die by a preforming unit. The insert material is then trimmed to remove the unnecessary portion of the preformed material. A trimming unit accomplishes this step. The trimming is done so as not to allow the insert material to project from the peripheral edge of the surface of a three dimensional molded article to be formed of molding resin. …
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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 December 27, 1993 and granted June 11, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 27, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 27, 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.