Patent · US Active

Security element with metallization

US8317231B2 · kind B2 · utility

3Cited by

10References

34Claims

0Family size

Assignee

GIESECKE & DEVRIENT GMBH · DE

Inventors

Manfred Heim · Munich, DE
Bernhard Wiedner · Miesbach, DE
Marius Dichtl · Munich, DE
Mario Keller · Bad Endorf, DE

Key dates

Filing date	Nov 8, 2007
Grant date	Nov 27, 2012
Priority date	—
Expiry date	Mar 13, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB42D2033/10
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

The present invention relates to a security element (20) for security papers, value documents and the like, having a substrate (22) and an opaque metallization 24, 26) arranged on the substrate. According to the invention in the security element is provided, that the metallization (24, 26) comprises a first opaque metal layer (24) and a second opaque metal layer (26) arranged above the first metal layer (24), and that the two metal layers (24, 26) have substantially the same tone of color in the visible spectral region.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.