Container, thermo-molding apparatus and method for thermo-molding the same
CA 2463853 C · Owner: Yokoyama, Toshiyuki · Inventors: Takeshita, Yasuo; Yokoyama, Toshiyuki; Nakazato, Shinsaku
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a bottomed cylindrical container comprising a body wall, a bottom wall, and a ring-shaped foot downwardly extending from the bottom wall, said container being produced by thermomolding , a resin sheet, characterized in that said foot is formed by folding an inner wall by , compressed fluid to be fusion-bonded with an outer wall so as to form the , foot , comprising the inner wall and the outer wall. The present invention also provides a , bottomed cylindrical container comprising a body wall having a grounding edge at , a lower end thereof, and a bottom wall said container being produced by , thermo-molding a resin sheet characterized in that said bottom …
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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 October 30, 2002 and granted August 28, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 30, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 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
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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.