System of issuing secure documents of various denomination
US4675669A · kind A · utility
28Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1985 |
| Grant date | Jun 23, 1987 |
| Priority date | — |
| Expiry date | Jul 11, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07D7/0047
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system of issuing secure docments involving stages that may be substantially distinct both in time and space. A raw document is selected possessing a uniqueness characteristic which is sensed and coded on the document. Subsequently, the document is completed as with an individual designation of value, by providing a bar code in the area of the uniqueness characteristic which is related to an Arabic numeral designation. Apparatus processes such documents for creation and verification based on selective testing of the uniqueness characteristic and the designations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.