Stampable sheet
CA 2030907 A1 · Owner: Idemitsu Kosan Company Limited · Inventors: Nakano, Akikazu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A stampable sheet which comprises 95 to 20% by weigh-t of styrene polymer having a syndiotactic configuration (a) and 5 to 80% by weight of fibrous reinforcing material having an average fiber length of at least 1 mm (b) which is excellent in heat resistance, impact resistance, dimensional stability and dielectric properties is disclosed.
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 27, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 27, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 27, 2012.
- 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.