Photo-chromic material application apparatus
US7547109B2 · kind B2 · utility
7Cited by
53References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2006 |
| Grant date | Jun 16, 2009 |
| Priority date | — |
| Expiry date | Aug 2, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43K29/10
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
In one embodiment of the invention, photo-chromic applicators are disclosed. The photo-chromic applicator may include a liquid photo-chromic material such as a photo-chromic ink or paint. The photo-chromic material is applied to a surface of a toy, a page, or other object by a child user. The photo-chromic material may be activated in various ways with various light activating devices that can generate the activating light with appropriate wavelengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.