Plant and method for thermally conditioning plastic items
CA 2542484 C · Owner: Armellin, Alberto · Inventors: Zoppas, Matteo; Armellin, Alberto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The method for thermally conditioning preforms in accordance with the invention comprises the following steps: - Placing the preforms on a chain conveyor (2); - Conveying the preforms through a first thermal conditioning stage (1) and subjecting them to a first heating or cooling heat exchange; - Removing the preforms from the first thermal conditioning stage and holding them outside for a predetermined amount of time in order to redistribute the temperature inside the preforms; - Subjecting the preforms to at least a second heating or cooling heat exchange in a second thermal conditioning stage (1) or in the first thermal conditioning stage. The invention also concerns the plants …
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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 14, 2004 and granted July 15, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 14, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 14, 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.