Fibre reinforced thermoplastic sheet
CA 2129568 A1 · Owner: Symalit Ag · Inventors: Sengbusch, Joachim; Jansz, Just Jan Christiaan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A glass mat reinforced thermoplastic semifinished sheet material comprising thermoplastic resin and at least two needled continuous and/or chopped glass fibre strand mats is disclosed as well as a method for its manufacturing and its use. Each of said glass mats is needled from the two sides in an asymmetrical way so, that the number of fibre ends protruding from the two major mat surfaces are practically the same but the length, of said fibre ends protruding from the first major surface is substantially longer than the length of the fibre ends protruding from the second opposite major surface. Said glass mats are impregnated with thermoplastic resin having either their first major surfaces …
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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 August 5, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 5, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 5, 2016.
- 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.