Continuous drying apparatus for porous web
CA 2264376 C · Owner: Sanada, Akira · Inventors: Suzuki, Setsuo; Sanada, Akira; Hoshi, Younosuke
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 continuous drying apparatus for porous web. The continuous drying apparatus for porous web, comprises a porous web for traveling on a drying line, a heating cylinder for contacting the porous web at its circumferential surface and rotating in synchronization with the travel of the porous web to heat the porous web, a drying band for contacting and supporting a surface of the porous web which is out of contact with the heating cylinder and also for rotating in synchronization with the travel of the porous web, and a pressure rotating body disposed near the circumference of the heating cylinder and outside the drying band. The pressure rotating body is …
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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 March 3, 1999 and granted April 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 3, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 3, 2021.
- 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.