Extension cords for plug-in telephones
US4047787A · kind A · utility
21Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1977 |
| Grant date | Sep 13, 1977 |
| Priority date | — |
| Expiry date | Jan 21, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R31/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An extension cord for plug-in telephones comprises a line cord having a plug at one end for insertion in a telephone outlet and multi-outlet member on the other end. The multi-outlet member is in the form of a hollow box-like member in the front of which are at least two apertures with a jack aligned with an behind each aperture for insertion of a plug. A back cover is attached to the multi-outlet member and the line cord enters through a slot in the cover. The jacks are wired in parallel to the line cord. A latch can be provided on the plug of the line cord and the aperture can be profiled to provide latch engaging formations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.