Device for molding or injection-molding polymer compounds, and mold accessories
CA 2188914 C · Owner: Wietrzynski, Bernhard · Inventors: Wietrzynski, Bernhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tool for molding or injecting plastic compounds with at least one mold accessory unit, especially and ejector device (10), preferably an ejection pin, and/or a core pin device is, distinguished in that the mold accessory device (10) has a marking unit (18) at least locally in the region facing the plastic compound during molding or injection.
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 April 20, 1995 and granted February 2, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 20, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 20, 2017.
- 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.