Record with removable two-dimensional code
US5710419A · kind A · utility
48Cited by
10References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 1995 |
| Grant date | Jan 20, 1998 |
| Priority date | — |
| Expiry date | May 30, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2019/06253
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A printing and reading system prints records having two-dimensional erasable bar codes. The bar code is printed on the record in erasable ink and can be implemented in PDF417 format. The system reads the two-dimensional erasable bar code located on the record, erases it using erasing fluid, dries it, and prints a new two-dimensional erasable bar code in place of the previous two-dimensional erasable bar code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.