Patent · US Active

Glass segments including identification marking

US8057884B2 · kind B2 · utility

1Cited by

8References

27Claims

0Family size

Assignee

SAINT-GOBAIN GLASS FRANCE · FR

Inventors

Hubert Hauser · Würselen, DE
Herbert Stadelmann · Aachen, DE
Andreas Kasper

Key dates

Filing date	Sep 16, 2009
Grant date	Nov 15, 2011
Priority date	—
Expiry date	Dec 6, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/315
WIPO fieldOther consumer goods
WIPO sectorOther fields

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.