White board
US4996110A · kind A · utility
90Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1986 |
| Grant date | Feb 26, 1991 |
| Priority date | — |
| Expiry date | Aug 19, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A white board comprises a front surface layer composed of a polyester film having undergone a hard coat treatment and a rear surface layer composed of a sheet-like magnet. The white board can be easily attached to and detached from steel walls, glass plates, etc. and stored in a rolled state when not in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.