Document authentication system utilizing a transparent label
US5514860A · kind A · utility
220Cited by
12References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 3, 1994 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | Oct 3, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S283/901
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This invention relates to a document authentication concept wherein a transparent tape having encoded text thereon is applied to the document. The encoded text printed on the transparent tape is printed with invisible ink so that the message thereon is not visible to the unaided eye. Preferably, the ink is visible in the infrared range. With such a combination, the authentication medium can be applied to a document that has a predetermined format so that the tape can be placed over a portion of the text and the latter will still be readable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.