Injection molding apparatus comprising a stack mold
CA 2098211 C · Owner: Herbst, Richard · Inventors: Herbst, Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An injection molding machine has a stack mold (10) . Stack mold (10) comprises two outer mold portions (3 7) enclosing a center, platen (13) between them. Center platen (13) and mold portions (3, 7) define form hollow cavities and are provided with a connector opening ( 27 ) and feed ducts ( 15 ) for the form hollow cavities. The injection molding machine further, comprises, a drive-and-close unit (11) for effecting a relative movement between the mold portions (3, 7) and the center platen (13) for opening and closing the form hollow cavities respectively. Moreover, the injection molding machine comprises an injection molding device (29) that may be coupled to connector opening (27) and …
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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 June 11, 1993 and granted March 7, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 11, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 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
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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.