EP 2697423 A1 20140219 - IMPROVEMENTS IN OR RELATING TO SECURITY OF DOCUMENTS
Title (en)
IMPROVEMENTS IN OR RELATING TO SECURITY OF DOCUMENTS
Title (de)
VERBESSERUNGEN AN ODER IM ZUSAMMENHANG MIT DER SICHERHEIT VON DOKUMENTEN
Title (fr)
PERFECTIONNEMENTS APPORTES A LA SECURITE DE DOCUMENTS OU S'Y RAPPORTANT
Publication
Application
Priority
- GB 201106347 A 20110414
- GB 2012050833 W 20120416
Abstract (en)
[origin: WO2012140448A1] A method of manufacturing paper comprises the steps of forming a watermark in a primary surface of a layer of a paper substrate (12) and forming a watermark in a secondary surface of said layer of the paper substrate.
IPC 8 full level
D21F 9/04 (2006.01); D21F 1/44 (2006.01); D21F 11/00 (2006.01)
CPC (source: EP)
D21F 1/44 (2013.01); D21F 9/043 (2013.01); D21F 11/006 (2013.01)
Citation (search report)
See references of WO 2012140448A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2012140448 A1 20121018; EP 2697423 A1 20140219; EP 2697423 B1 20160316; GB 201106347 D0 20110601; PL 2697423 T3 20161031; SI 2697423 T1 20160729
DOCDB simple family (application)
GB 2012050833 W 20120416; EP 12719792 A 20120416; GB 201106347 A 20110414; PL 12719792 T 20120416; SI 201230551 A 20120416