Telephone housing interlock
US5818932A · kind A · utility
0Cited by
1References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 3, 1997 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | Apr 3, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M17/026
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A security interlock for the abutting portion of the upper and lower housing of coin-operated pay telephones comprise a pair of interlocking brackets positioned proximate the seam between the housing portions. A first bracket mounted to one housing has a leg portion which overlies the seam, while a second bracket mounted to the second housing portion overlies the first bracket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.