The sole FIGURE is a front view of a cataract detection eye chart showing my new design. The cataract detection eye chart has no appreciable thickness.
Patent Grant
D685480
The sole FIGURE is a front view of a cataract detection eye chart showing my new design. The cataract detection eye chart has no appreciable thickness.
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| Number | Date | Country | |
|---|---|---|---|
| Parent | 12892927 | Sep 2010 | US |
| Child | 29433000 | US | |
| Parent | 12683898 | Jan 2010 | US |
| Child | 12892927 | US |