Fluid polyester moulding masses
CA 2554037 C · Owner: Stumbe, Jean-Francois · Inventors: Scherzer, Dietrich; Stumbe, Jean-Francois; Eipper, Andreas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to thermoplastic moulding masses containing A) 10 to , 99.99 wt. % of at least one thermoplastic polyester B) 0.01 to 50 wt. % of a , hyperbranched polycarbonate having a hydroxyl number of 1 to 600 mg KOH/g polycarbonate (according to DIN 53240, part 2) and C) 0 to 60 wt. % of other additives, the sum of the weight percentages of the constituents A) to C) being equal to 100 %.
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 February 2, 2005 and granted May 1, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 2, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.