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:
May. 16, 1989
Filed:
Jun. 09, 1987
Applicant:
Inventors:
Henning Franek, Braunfels-Tiefenbach, DE;
Heinz Broemer, Wetzlar-Hermannstein, DE;
Klaus Deutscher, Wetzlar, DE;
Assignee:
Ernst Leitz Wetzlar GmbH, Wetzlar, DE;
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65286 ; 653741 ; 6537413 ;
Abstract
Inorganic material resisting to high temperatures for installations intended to form structural glass elements which, owing to the precision and the quality of the forming surface, do not require after forming any other surface treatment. The material is comprised of at least one forming surface based on at least one from the groups of a metal oxide a double metal oxide, and a crystalline solid solution. It has a monocrystalline structure. Preferred materials are Al.sub.2 O.sub.3, Cr.sub.2 O.sub.3, MgAl.sub.2 O.sub.4 and/or ZrO.sub.2.