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:
Jun. 01, 1999
Filed:
Apr. 29, 1997
Applicant:
Inventors:
Peter Brix, Mainz, DE;
Ludwig Gaschler, Mainz, DE;
Thomas Kloss, Jena, DE;
Gerhard Lautenschlager, Jena, DE;
Klaus Schneider, Apolda, DE;
Assignee:
Schott Glaswerke, , DE;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428426 ; 428 98 ; 501 66 ; 501 67 ; 349158 ;
Abstract
Described is an alkali-free aluminoborosilicate glass with a viscosity of 10.sup.13 dPas at a temperature of above 700.degree.0 C., a processing temperature V.sub.A of less than 1220.degree.0 C., and very good chemical stability, which can be produced in a float unit and has the following composition, in % by weight based on oxide: