Tamper indicating devices and methods for securing information

Details Tamper indicating devices and methods for securing information Tamper indicating devices and methods for securing information

2004-04-20

2008-09-09

Nordmeyer, Patricia L (Department: 1794)

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

C428S040100, C428S042100, C428S343000, C428S354000, C428S915000, C428S916000, C283S072000, C283S094000, C283S098000, C283S101000

Reexamination Certificate

active

07422781

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.

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Tamper evident delaminating film, as described in PCT Publication WO 00/43977, published Jul. 27, 2000 was offered for sale in the United States by applicant prior to Oct. 25, 1999.
Plastics Films, Third Edition, by John H. Briston, Longman Scientific & Technical in association with the Plastics and Rubber Institute, Introduction page and pp. 74-79.

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