Tamperproof window seurable informational article
US6361889B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1999 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Dec 8, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2495
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The tamperproof window securable informational article includes a first side for facing said window and a second side for facing away from said window. A low wet-strength paper layer which will resist removal of said article as a unit when the paper layer has been soaked with a liquid is provided. Standard information and custom information may be interposed between an adhesive layer for securing the article to the window and an optically variable device. A first partially liquid permeable layer is disposed rearwardly of the low wet-strength paper layer. In a preferred embodiment the optically variable device is a hologram and zones of different adhesive and release properties are interposed between the optically variable device and the paper layer to resist removal of the article as a unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.