Sharpener for sharpening a soft-core pencil
US6634108B2 · kind B2 · utility
2Cited by
6References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 31, 2002 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Feb 25, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43L23/085
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A sharpener, in particular for a soft-core pencil, has a sharpener housing with a sharpener channel that opens out into a free space via a channel opening. The sharpener has a sharpener blade that is positioned tangentially against the channel opening. The invention provides a magnifying glass for optically enlarging a core formation in the region of the channel opening and/or in the free space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.