File box with front door
US4901883A · kind A · utility
11Cited by
17References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 23, 1989 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | Mar 23, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42F7/14
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A file box having a door which is swingably mounted between side walls and biased toward a closed position by a spring engaged around a stub axle. The door has a pair of stub axles, one of which is preferably received in the coil of the biasing spring, which is in turn seated in a socket in one side wall of the box; the other stub axle is received in a slot in the opposite side wall, and is journaled for rotation by the end of the slot. Optionally, the door extends up just a lower portion of the front opening of the box, so as to permit viewing of contents of the box above the door while retaining such contents in the box.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.