Metal plate material hot press molding apparatus and hot press molding method
CA 2682873 C · Owner: Mitake, Hiroyuki · Inventors: Ishimori, Yuuichi; Yamasaki, Norimasa; Mitake, Hiroyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a metal plate material hot molding apparatus for press molding a heated metal plate material (1) supply piping (6) for a cooling medium is provided in a mold (2 3), and ejection holes (4) penetrating from a molding surface of the mold (2 3) to the supply piping (6) are provided. Discharge piping (7) for the cooling medium may be provided in the mold (2 3), and discharge holes (5) penetrating from the molding surface of the mold (2 3) to the discharge piping (7) may be provided and further, cooling piping (8) may be provided. Molding is performed while the cooling medium is ejected from the ejection holes (4) to a gap between the metal plate material (1) and the mold (2 3).
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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 September 28, 2004 and granted January 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 28, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 28, 2026.
- 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.