Flameproofed thermoplastic molding materials
CA 2058870 A1 · Owner: Plachetta, Christoph · Inventors: Beringer, Hans-Peter; Gareiss, Brigitte; Baierweck, Petra
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
O.Z. 0050/42137, Abstract of the Disclosure: Flameproofed thermoplastic molding materials contain, A) from 10 to 98.45% by weight of a thermoplastic polyamide, B) from 1 to 30% by weight of phosphorus C) from 0.5 to 30% by weight of an elastomeric polymer D) from 0.05 to 15% by weight of a polyethylene having a density of from 0.94 to 0.98 g/cm3 or of a polypropylene having an average molecular weight ?w of from 100,000 to 2,000,000 or a mixture thereof and, E) from 0 to 60% by weight of a fibrous or particulate filler.
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 January 7, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 7, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 2014.
- 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.