Weathering-stable compositions of homogeneously moulded-in colour based on impact-modified polyalkylene terephthalate/polycarbonate blends
CA 2546048 C · Owner: Dorsch, Urs-Peter · Inventors: Thiem, Hans-Juergen; Paul, Friedemann; Persigehl, Peter
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 coloured weathering-stabilized compositions , based on impact-modified polyalkylene terephthalate/polycarbonate blends and moulding , compositions, semi-finished products and mouldings produced therefrom which , are , employed, for example, for motor vehicle exterior uses in non-lacquered form or in a , form coated only with a transparent clear lacquer.
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 November 13, 2004 and granted January 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2024.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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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.