Security barrier
US4671012A · kind A · utility
32Cited by
8References
6Claims
0Family size
Inventors
Key dates
| Filing date | Jun 14, 1985 |
| Grant date | Jun 9, 1987 |
| Priority date | — |
| Expiry date | Jun 14, 2005 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B9/01
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A guard device adapted to bar an opening, such as a window or door of a house, is disclosed comprising in combination a number of bars being adapted to lie across the opening, an inner casing being adapted to secure the bars, an outer casing being adapted to be attached by a fastener about the opening and being adapted to receive the inner casing to cover the fastener, a connector being adapted to releasably connect the inner casing to the outer casing, and a lock adapted to lock and unlock the connector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.