Lid with a see-through plate
US4522311A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 10, 1983 |
| Grant date | Jun 11, 1985 |
| Priority date | — |
| Expiry date | Jan 10, 2003 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F39/14
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A lid with a see-through plate to open and close an opening portion of an apparatus has a lid body which has an opening for visually checking the interior of the apparatus, a ring-shaped engaging groove formed along the periphery of the opening, and projections provided in the engaging groove. A see-through plate is removably attached to the lid body to close the opening. The see-through plate has an outer peripheral edge closely resembling the opening in shape and hooks engaging with the projections. The interior of the apparatus can be externally observed through the see-through plate. A decorative frame is removably fitted in the engaging groove to hold the see-through plate as the projections and hooks engage one another, and to cover the projections and hooks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.