Electronic business cards
US6442263B1 · kind B1 · utility
172Cited by
5References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1997 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Apr 23, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2250/22
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.