Security element
US7037606B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 24, 2002 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Jun 24, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D25/355
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A security element is equipped with first code of magnetic material and/or second code of electroconductive material and has in addition third, optically read-able code, for example as negative writing and/or as a bar code, which is present in the magnetic and/or electroconductive code or is produced preferably together with third, neutral material, the neutral material not being either electroconductive or magnetic. According to the invention it is provided that all three aforementioned materials are indistinguishable to the viewer optically, that is, with the naked eye, and therefore appear as a uniform coating made of a single material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.