EP 0975467 A1 20000202 - TRANSITORY IMAGE STRUCTURE
Title (en)
TRANSITORY IMAGE STRUCTURE
Title (de)
TRANSIENTBILDSTRUKTUR
Title (fr)
STRUCTURE D'IMAGE TRANSITOIRE
Publication
Application
Priority
- GB 9801090 W 19980415
- GB 9707849 A 19970418
Abstract (en)
[origin: WO9847715A1] A transitory image structure comprises linear markings (1-10) on a substrate. The linear markings define image (31, 32) and background (30) portions respectively, the markings cooperating together such that an image generated by the image portion is not visible from all viewing angles. At least some of the lines of the markings of at least one of the portions have a physical characteristic, such as thickness, which varies in a substantially random manner along their lengths.
IPC 1-7
IPC 8 full level
B41M 3/14 (2006.01); B42D 15/00 (2006.01)
CPC (source: EP)
B41M 3/148 (2013.01); B42D 25/29 (2014.10); B42D 2035/16 (2022.01)
Citation (search report)
See references of WO 9847715A1
Designated contracting state (EPC)
CH DE ES FR GB LI NL SE
DOCDB simple family (publication)
WO 9847715 A1 19981029; AU 7060498 A 19981113; CA 2286551 A1 19981029; DE 69804086 D1 20020411; DE 69804086 T2 20020801; EP 0975467 A1 20000202; EP 0975467 B1 20020306; ES 2174430 T3 20021101; GB 9707849 D0 19970604
DOCDB simple family (application)
GB 9801090 W 19980415; AU 7060498 A 19980415; CA 2286551 A 19980415; DE 69804086 T 19980415; EP 98917362 A 19980415; ES 98917362 T 19980415; GB 9707849 A 19970418