System for confirming the authenticity of an article using a magnetic reader
US5975581A · kind A · utility
13Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1998 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Aug 25, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2203/00
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method for confirming the authenticity of an article including placing a semi hard piece of material on an article then printing a magnetic pattern on the semi hard piece of material. In order to view the pattern, a viewer containing a suspension of materials will be placed over the semi hard piece of material. The suspension of materials will then orient in the presence of a magnetic field adjacent to the magnetic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.