Absorbent article having rapid acquiring, wrapped multiple layer absorbent body
CA 2098502 C · Owner: The Procter & Gamble Company · Inventors: Feist, Barry Robert; Benjamin, Joyce Marie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An absorbent article, such as a disposable diaper adult incontinent article, sanitary napkin and the like, is disclosed which, has a rapid acquiring wrapped multiple layer absorbent body in an absorbent core. The absorbent article of the present invention comprises a liquid pervious topsheet, a liquid impervious backsheet and an absorbent core positioned between the topsheet and the backsheet. The absorbent core comprises a multiple layer absorbent body comprising at least one rapid acquiring acquisition/ distribution layer and at least one storage layer positioned subjacent each acquisition layer. The storage layers at least partially comprise a "high-speed" absorbent gelling material. A …
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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, 1991 and granted January 7, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2013.
- 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.