Advanced dewatering system
CA 2771007 C · Owner: Voith Paper Patent Gmbh · Inventors: Silva, Luiz Carlos; Herman, Jeffrey; Scherb, Thomas Thoroee
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A paper machine dewatering system comprises a permeable press belt; a first fabric including a first side and a second side said first , fabric , comprising a fibrous web on the first side and being contacted on the second side by the permeable press belt the first fabric being between the , permeable press belt and the fibrous web; a second fabric in at least partial contact with the fibrous web, the fibrous web being between the first fabric and the second fabric, the permeable press belt exerting a predetermined amount of pressure on the second side of the first fabric; and an airflow device moving air successively through the permeable press belt the first , fabric, the fibrous …
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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 January 19, 2005 and granted June 10, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 19, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.