EP 0156618 A2 19851002 - Security documents.
Title (en)
Security documents.
Title (de)
Sicherheitsdokument.
Title (fr)
Document de sécurité.
Publication
Application
Priority
GB 8407212 A 19840320
Abstract (en)
A security document (20,21) is provided with limited areas (17;26,27,28) of pressure-sensitive material the surfaces of which are substantially co-planar with the remainder of the area (25;33,34,35) of the document and the whole area of the document is overlain with a transparent protective cover layer (18;24) so that markings can be applied to the said limited areas (17;26,27,28) and these marks can be neither erased nor removed from the document. The transparent cover layer (18;24) may be adhesively bonded plastics material or may be a coating applied in a liquid form which subsequently sets, cures or hardens. The limited areas of pressure-sensitive material (17,26,27,28) are made co-planar with the remainder of the document (25;33,34,35) by applying an entirely covering layer of pressure-sensitive material which is subsequently desensitised in the areas (25;33,34,35) where the pressure-sensitive marking is not required.
IPC 1-7
IPC 8 full level
B42D 15/02 (2006.01); B42D 15/10 (2006.01)
CPC (source: EP)
B42D 25/00 (2014.10); B42D 25/415 (2014.10); B42D 25/20 (2014.10); B42D 25/455 (2014.10); B42D 25/46 (2014.10); B42D 25/47 (2014.10); B42D 2033/04 (2022.01); B42D 2033/12 (2022.01); B42D 2033/16 (2022.01); B42D 2033/28 (2022.01); B42D 2033/32 (2022.01); B42D 2035/02 (2022.01); B42D 2035/08 (2022.01); B42D 2035/16 (2022.01); B42D 2035/20 (2022.01); B42D 2035/34 (2022.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0156618 A2 19851002; EP 0156618 A3 19860521; EP 0156618 B1 19900307; AT E50734 T1 19900315; DE 3576308 D1 19900412; GB 8407212 D0 19840426
DOCDB simple family (application)
EP 85301910 A 19850319; AT 85301910 T 19850319; DE 3576308 T 19850319; GB 8407212 A 19840320