Plastic rail system reinforced with fiberglass thermoplastic composites
CA 2467457 A1 · Owner: Jo, Byeong H. · Inventors: Jo, Byeong H.; Duncan, Richard S.
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 a consolidated form of the commingled continuous filaments of glass fibres and polymeric fibers as reinforcement. The consolidation of the commingled fibers into composite reinforcement can be used in a continuous form or bulk molding compount pellets. The consolidation of the commingled fibers into composite reinforcement can be made in-situ during in-line extrusion of the final end product extrudate or prepared as a , tape or rod and incorporated into an off-line extrusion of final product. The bulk molding pellets are used solely or diluted with an addition of polymeric material for mono or co-extrusion or compression molding.
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 18, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 18, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 2024.
- 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.