Pen structure with a flag
US4984379A · kind A · utility
Inventor
Key dates
| Filing date | Jan 22, 1990 |
| Grant date | Jan 15, 1991 |
| Priority date | — |
| Expiry date | Jan 22, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F2023/0016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A writing instrument is disclosed having a display flag attached to an internal pen holder such that the flag may be displayed either by pulling it laterally through any elongated opening in an external pen holder, or by axially extending the internal pen holder from the external pen holder. A positioning block attached to the internal pen holder limits the relatively axial sliding movement between the internal and external pen holders to prevent the user from completely pulling the internal pen holder from the external pen holder. The writing instrument may also be placed in a base such that the flag may be displayed while the base rests on a desk, table, or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.