Patent · US Active

Security element for a security document and process for the production thereof

US10259252B2 · kind B2 · utility

2Cited by

2References

12Claims

0Family size

Assignee

LEONHARD KURZ Stiftung & Co. KG · DE

Inventors

Juri Attner · Burgthann, DE
Rene Staub · Baar, CH
Klaus Weber · North Canberra, AU

Key dates

Filing date	May 18, 2016
Grant date	Apr 16, 2019
Priority date	—
Expiry date	Dec 9, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB42D2035/36
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

The invention concerns a security element for a security document comprising a structure layer and diffractive first and second relief structures, wherein the relief structures viewed parallel to the plane of the structure layer are arranged in different planes of the security element, wherein the first relief structure adjoins a partial first reflection layer and the second relief structure adjoins a partial second reflection layer, and wherein—if the first reflection layer is towards a viewer—a second item of information generated by the second relief structure is at least partially concealed and—if the second reflection layer is towards the viewer—a first item of information generated by the first relief structure is at least partially concealed, and processes for the production of such security elements and security documents formed therewith.

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