Patent · US Expired

Marking heat-treated substrates

US7615253B2 · kind B2 · utility

1Cited by

8References

19Claims

0Family size

Assignee

SAINT-GOBAIN GLASS FRANCE · FR

Inventors

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

Key dates

Filing date	Jun 25, 2003
Grant date	Nov 10, 2009
Priority date	—
Expiry date	Nov 11, 2023

Classification

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

Abstract

A method for visual marking of heat-treated substrates, in particular tempered glass panes. The method modifies a marking layer deposited on a surface of the substrate, that visually indicates that the heat treatment has been carried out, and produces a rough marking field on the surface of the substrate that the marking layer deposited on the substrate exhibits intimate adhesive bonding thereto, which marking layer cannot be completely removed using a mechanical mechanism.

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