Title:
TAMPER INDICATING DEVICES AND METHODS FOR SECURING INFORMATION
Document Type and Number:
WIPO Patent Application WO2004095401
Kind Code:
A3
Abstract:
A tamper indicating device. A preferred embodiment of the invention provides a backing having a first side and a second side, wherein the backing comprises a first phase and a second phase, wherein the backing has a first level of light diffusion, and when a peeling force is applied to the backing, the backing fractures or internally delaminates and has a second level of light diffusion that is a higher level of light diffusion than the first level of light diffusion; a flood coat applied to the second side of the backing, the flood coat defining a window therein; and a mask applied to the tamper indicating device, the mask being in partial or whole registration with the window in the flood coat.
Inventors:
GOSSELIN RAYMOND R
Application Number:
PCT/US2004/012051
Publication Date:
March 24, 2005
Filing Date:
April 20, 2004
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO (US)
International Classes:
B32B27/08; C09J7/29; G06K19/073; G09F3/02; (IPC1-7): G09F3/02; B42D15/02
Foreign References:
| US6395376B1 | 2002-05-28 | |||
| EP0651365A1 | 1995-05-03 | |||
| DE19705380C1 | 1998-06-10 | |||
| US5346259A | 1994-09-13 |
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