US Patent 9542866 Device screen protector article

An article for protecting a display screen of an electronic device with a display surface. The article may comprise a substrate configured to cover the screen of the device during us of the device, at least a portion of the substrate being substantially transparent to permit viewing of the display surface through the substrate. The substrate may have a perimeter, an outer surface for facing outwardly from the display surface when the substrate is applied to the display surface, and an inner surface for facing toward the display surface when the substrate is applied to the display surface. The article may comprise at least one marking on the substrate.