Multipurpose writing instrument
US8801309B2 · kind B2 · utility
0Cited by
5References
24Claims
0Family size
Inventor
Key dates
| Filing date | Nov 26, 2010 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Dec 12, 2031 |
Classification
- Technology area (CPC —)General
Abstract
A disposable writing instrument is provided for carpenters, masons and other tradesmen. The instrument is a lead pencil which comprises one or more accessories, including a level and a ruler. The level is positioned about the center of the instrument. Either or both ends of the instrument are adapted to be used to mark a surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.