Fabric crepe and in fabric drying process for producing absorbent sheet
CA 2559343 C · Owner: Fort James Corporation · Inventors: Super, Guy H.; Wendt, Greg; Edwards, Steven L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides methods of making fabric-creped absorbent cellulosic sheets with improved absorbency by elevating void volume, as well , as improved bulk and stretch. The methods include the steps of (a) compactively dewatering a papermaking furnish to form a dewatered web (b) applying the web , to a , transfer surface (c) fabric-creping the web, such that the web is creped from the transfer , surface and redistributed on the creping fabric to form a web with a drawable reticulum , having a plurality of interconnected regions of different local basis weights including at , least (i) a plurality of fiber-enriched regions of a high local basis weight interconnected , by …
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 April 19, 2005 and granted January 6, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 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.