Door security apparatus
US5724705A · kind A · utility
14Cited by
9References
5Claims
0Family size
Inventor
Key dates
| Filing date | May 9, 1996 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | May 9, 2016 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/132
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A door security device for use in securing a door against unauthorized entry. The device includes a protrusion which can be mounted to the hinge side of a door or to the hinge side of a door frame and can be received within a recess in the opposite door or door frame. The protrusion in received by the recess to prevent the door from being removed by removal of a hinge pin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.