Apparatus for and process of material web formation on a structured fabric in a paper machine
CA 2554367 C · Owner: Herman, Jeffrey · Inventors: Scherb, Thomas Thoroe; Herman, Jeffrey
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of forming a structured web including the steps of providing a fiber slurry through a headbox (22) to a nip formed by a structured fabric (28) and a forming fabric (26) and collecting fibers from the fiber slurry in at least one valley of the structured fabric.
Read the whole patent
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 January 8, 2013. 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.