Tamper indicating security item and joining method
US5851615A · kind A · utility
28Cited by
4References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 7, 1997 |
| Grant date | Dec 22, 1998 |
| Priority date | — |
| Expiry date | Aug 7, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31551
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A tamper indicating security item such as a shrink wrap seal comprises a substrate including an optically variable effect generating structure such as an embossed hologram. Each surface of the substrate carries an adhesive having a strength such that after the substrate has been adhered to a surface it cannot be removed without damaging the optically variable effect generating structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.