Glass segments including identification marking

Details Glass segments including identification marking Glass segments including identification marking

2009-09-16

2011-11-15

Blackwell, Gwendolyn (Department: 1784)

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

C428S426000, C428S409000, C428S410000

Reexamination Certificate

active

08057884

ABSTRACT:
A glass pane is provided. A marking field that includes an uneven surface structure is located on a limited area of a smooth side surface of the glass pane. The limited area is smaller than a total area of the side surface of the glass pane, and the uneven surface structure is more rough than portions of the side surface of the glass pane that are outside of the limited area of the side surface of the glass pane. A marking layer is located on the marking field so as to create an intimate adhesive bond between the marking layer and the marking field. The marking layer includes a color containing a thermochromic pigment that visually indicates that a heat treatment has been carried out on the glass pane by being irreversibly modified at a temperature at which the heat treatment is conducted.

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