Writing, drawing, painting and /or cosmetics pencil and method of producing the same
US8845220B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2007 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Mar 18, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/304
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The invention relates to a pencil 1 for writing, drawing, painting and/or cosmetics purposes, comprising a colored core 11 and a core holder enclosing the core 1, wherein the core holder comprises a wood-replacement material 12 which encloses the core 1, wherein the core 1 and core holder are retained such that they cannot be displaced in relation to one another, wherein the core holder has a carrying sleeve 13 which encloses the wood-replacement material 12, and wherein the modulus of elasticity of the carrying sleeve 13 is equal to, or higher than, that of the wood-replacement material and the bending strength of the carrying sleeve is higher than that of the wood-replacement material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.