Fluid handling structure for use in absorbent articles
CA 2073849 C · Owner: Krautter, Edward Herman · Inventors: Johnson, Theresa Louise; Krautter, Edward Herman; Thompson, Hugh Ansley
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Fibers having intra-fiber capillary channels are used in conjunction with topsheet materials in absorbent articles such as diapers, bandages and, especially, sanitary napkins. In-use the, capillary channel fibers draw fluid away from the topsheet to provide a clean, dry appearance.
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 July 14, 1992 and granted December 23, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 14, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 2014.
- 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.