Global Patent Index - EP 1258006 A2

EP 1258006 A2 2002-11-20 - MULTI-LAYER POLYMERIC FILM AND THE USE THEREOF

Title (en)

MULTI-LAYER POLYMERIC FILM AND THE USE THEREOF

Title (de)

MEHRSCHICHTIGER KUNSTSTOFFFILM UND SEINE VERWENDUNG

Title (fr)

FILM POLYMERE A COUCHES MULTIPLES ET UTILISATION RELATIVE

Publication

EP 1258006 A2 (EN)

Application

EP 01914465 A

Priority

  • GB 0004170 A
  • US 0105903 W

Abstract (en)

[origin: WO0162496A2] The use of a multilayer film to store or retrieve information, said information being correlated to the multilayer structure of the film, and said multilayer film comprising at least two different types of layer, wherein each type of layer exhibits a different optical property and wherein the multilayer film comprises a plurality of layers of each of at least two of the different types of layer; a method of storing information, a method of retrieving stored information and a method of protecting against counterfeiting or fraud, which method utilises said multilayer film.

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

G11C 13/04

IPC 8 full level (invention and additional information)

B32B 7/02 (2006.01); G06K 7/14 (2006.01); G06K 19/06 (2006.01); G06K 19/10 (2006.01)

CPC (invention and additional information)

B32B 7/02 (2013.01)

Citation (search report)

See references of WO 0162496A3

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

WO 0162496 A2 20010830; WO 0162496 A3 20020418; CN 1500271 A 20040526; EP 1258006 A2 20021120; GB 0004170 D0 20000412; JP 2004503393 A 20040205

INPADOC legal status


2009-03-04 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20080902

2006-10-25 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20060925

2002-11-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020823

2002-11-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR