Solid state primary telephone protector
US5438619A · kind A · utility
10Cited by
11References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1990 |
| Grant date | Aug 1, 1995 |
| Priority date | — |
| Expiry date | Nov 20, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T4/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A telephone protector includes a rigid plastic packaged solid state switch which is clamped to prevent the switch from bursting to an open circuit condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.