Mold assembly for blow molding plastic articles and method of use
CA 2471535 A1 · Owner: Salflex Polymers Ltd. · Inventors: Sadr, Changize; Elgner, Roger
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mold assembly (10) for blow molding plastic articles (4) is provided having an upper mold member (12), a lower mold member (14) and a lower support member (16). The lower mold member (14) is preferably a relatively lightweight plate having a generally centrally located molding cavity (30) matingly matched with an upper molding cavity (20) in the upper mold member (12). The lower mold member (14) is moved horizontally and optionally vertically beneath an extrusion head (H) as a molten parison (P) is extruded. The lower mold member(14) is then transported to, and positioned within the lower support , member (16). The upper mold member (12) is then closed over the lower mold member …
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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 February 11, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 11, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 2025.
- 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.