Global Patent Index - EP 1034516 A1

EP 1034516 A1 2000-09-13 - MICROWAVE METHOD FOR CHECKING THE AUTHENTICITY

Title (en)

MICROWAVE METHOD FOR CHECKING THE AUTHENTICITY

Title (de)

MIKROWELLENVERFAHREN ZUM PRÜFEN DER ECHTHEIT

Title (fr)

PROCEDE DE VERIFICATION DE L'AUTHENTICITE PAR MICRO-ONDES

Publication

EP 1034516 A1 (EN)

Application

EP 98964432 A

Priority

  • EP 98964432 A
  • EP 9807547 W
  • EP 97203672 A

Abstract (en)

[origin: WO9927502A1] A method of checking the authenticity of a security document, said security document comprising an electrically non-conducting base material such as paper or plastic, particles functioning as an electrical dipole being incorporated in said base material and functioning as a security element. The method comprises the following steps: (a) manually performing a relative movement between a document (10) to be checked and a microwave detector; (b) emitting microwaves to said document (10) to be checked and receiving microwaves from said document to be checked in order to check whether said particles are present; (c) preventing human fingers or peoples' hands from interfering with the microwaves received from said document to be checked in order to avoid that human fingers are confused with said particles.

IPC 1-7 (main, further and additional classification)

G07D 7/00

IPC 8 full level (invention and additional information)

G07D 7/00 (2006.01); G07D 7/10 (2006.01)

CPC (invention and additional information)

G07D 7/10 (2013.01)

Citation (search report)

See references of WO 9927502A1

Designated contracting state (EPC)

BE DE FR GB IT NL

EPO simple patent family

WO 9927502 A1 19990603; AU 1963599 A 19990615; EP 1034516 A1 20000913

INPADOC legal status


2002-05-15 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20011103

2001-08-08 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010621

2000-09-13 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000515

2000-09-13 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE DE FR GB IT NL