Cleaning sheet
US8646144B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2008 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Feb 28, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L13/38
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A cleaning sheet (1) includes at least one continuous-filament aggregate (10) formed by aggregating and orienting a multitude of continuous filaments (11) substantially in one orientation direction. The continuous filaments (11) are joined by a single first joining line (12) extending continuously in a direction orthogonal to the orientation direction of the continuous filaments (11) and are joined by a plurality of second joining lines (13) extending in the orientation direction. In this way, the continuous filaments (11) in the continuous-filament aggregate (10) are kept in an aggregated state. Preferably, the second joining lines (13) are connected to the first joining line (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.