The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 16, 2024
Filed:
Oct. 18, 2022
Applicant:
Schott Ag, Mainz, DE;
Inventors:
Andre Petershans, Nabburg, DE;
Carina Bronnbauer, Eichigt, DE;
Sebastian Heinl, Mantel, DE;
Hans Lippert, Wiesau, DE;
Assignee:
Schott AG, Mainz, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 61/30 (2006.01); C03C 3/06 (2006.01); C03C 3/091 (2006.01);
U.S. Cl.
CPC ...
C03C 3/091 (2013.01); C03C 3/06 (2013.01); H01J 61/302 (2013.01);
Abstract
A glass has a coefficient of thermal expansion in a temperature range from 20° C. to 300° C. of 4.5 ppm/K or less, and a T4 temperature, defined as the temperature at which the glass has a viscosity of 10dPa*s, at 1500° C. or more, and having a reboil propensity score of less than 10 measured in a reboil propensity test. The reboil propensity score is determined as a number of bubbles per glass rod formed from the glass after the reboil propensity test.