Patent · US Expired

Security element for security papers and valuable documents

US8449969B2 · kind B2 · utility

4Cited by

33References

30Claims

0Family size

Assignee

GIESECKE & DEVRIENT GMBH · DE

Inventors

Mario Keller · Bad Endorf, DE
Theo Burchard · Tegernsee, DE

Key dates

Filing date	Dec 17, 2002
Grant date	May 28, 2013
Priority date	—
Expiry date	Jul 22, 2025

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, documents of value, ID cards or the like that is of self-supporting design and has two different security features. The security features are disposed on opposite sides of the security element, at least one the security features being optically variable.

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