Multilayered indentification card
US4536013A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1983 |
| Grant date | Aug 20, 1985 |
| Priority date | — |
| Expiry date | Mar 11, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S283/904
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A multilayered data carrier, in particular an identification card, consisting of at least one data carrier with non-user and user data, in particular with a phonograph of the authorized user, in the case of which the user data, i.e. the user's photograph, are protected by a transparent cover sheet which is glued or welded onto the card. The data carrier has a high-security printed pattern, e.g. a guilloche pattern, and the user data are copied onto the data carrier by means of an electro-photographic method, i.e. by xerography or by zinc oxide-electrophotography.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.