Establishment of a PSTN and internet multimedia collaboration session
US6704294B1 · kind B1 · utility
66Cited by
2References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 13, 1999 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Oct 13, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/42323
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.