Paper machine wire for the wet end section of a paper machine
CA 2292783 A1 · Owner: Voith Fabrics Heidenheim Gmbh & Co. Kg · Inventors: Westerkamp, Arved H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a paper machine wire for the wet end section of a paper, machine, comprising a textile or non-textile fabric especially a woven , fabric, the one side of which is directed to the paper and the other opposite side of which is , directed to the paper machine, the one side of the fabric directed to the paper being at least partly, covered by a fiber layer. The fiber layer is permanently compressed in some regions less, intensively than in other regions.
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 December 20, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 20, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 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.