Sanitary napkin
US7465297B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2005 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | Nov 30, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/4702
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A sanitary napkin includes: a napkin body having a liquid-absorbent layer for absorbing and retaining liquid; and a projection projecting from a body surface of the napkin body. The projection has an apex and a pair of side wall portions formed of a liquid-permeable material. The apex is spaced apart from the body surface of the napkin body and extends along a longitudinal centerline of the napkin body. The side wall portions connect at the apex and diverge toward the body surface of the napkin body. The apex and the side wall portions are different in stiffness. The side wall portions have a space therebetween and are permitted to deform and approach each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.