Indicator on body fluid absorbent article
US7154019B2 · kind B2 · utility
86Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 24, 2003 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Oct 14, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/42
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An indicator interposed between a liquid-impervious sheet and an absorbent core of a body fluid absorbent article includes a water-absorbent sheet and indication elements held in close contact with the water-absorbent sheet. The water-absorbent sheet is preferably formed from porous thermoplastic films having a total luminous transmittance of 40% or lower in a dry state and 60% or higher in a wet state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.