Method of vacuum forming a molded article having an undercut channel
US7172722B2 · kind B2 · utility
1Cited by
46References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2002 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Jul 2, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47F7/145
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A display unit for displaying various flat or flat-packaged articles, such as greeting cards, magazines, brochures, and the like is provided. The display unit includes a molded backboard having a plurality of walls joined to one another by a plurality of horizontal channels and a snap-in retainer for holding the displayed articles which is easily inserted into and removed from the channel of the backboard. Additionally, the present invention relates to a method of making such a molded backboard and a mold insert tool for use in forming the channel of the backboard.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.