Body fluid absorbent article
CA 2084358 C · Owner: Yamamoto, Masamitsu · Inventors: Murakami, Masaki; Yamamoto, Masamitsu; Mizutani, Satoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A body fluid absorbent article comprising a topsheet formed with tubular liquid passages extending from the bottom surface of the topsheet and an absorbent core wherein a meshy sheet comprising fibres defining meshes smaller than lower openings of the respective liquid passages is interposed between said topsheet and said absorbent core so that said fibres extend across the lower openings.
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 2, 1992 and granted September 23, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 2, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 2, 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.