Analog subscriber circuit
US6590977B1 · kind B1 · utility
2Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1999 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Jun 22, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/573
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.