Patent · US Expired

Security element and method for producing the same

US7479320B2 · kind B2 · utility

35Cited by

1References

12Claims

0Family size

Assignee

GIESECKE & DEVRIENT GMBH · DE

Inventors

Mario Keller · Bad Endorf, DE
Theo Burchard · Tegernsee, DE
Lars Hoffmann · Birkenfeld, DE

Key dates

Filing date	Dec 17, 2002
Grant date	Jan 20, 2009
Priority date	—
Expiry date	Nov 5, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24802
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

The invention relates to a security element for security papers, bank notes, ID cards or the like, having at least one plastic layer on which at least two metal layers of different color are so disposed side by side and on the same side of the plastic layer that the different colors are visually checkable.

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