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:
Jan. 12, 1988
Filed:
Apr. 16, 1986
Applicant:
Inventors:
Karl Mennemann, Taunusstein, DE;
Georg Gliemeroth, Mainz-Finthen, DE;
Ludwig Ross, Klein-Winterheim, DE;
Burkhard Speit, Mainz-Mombach, DE;
Volkmar Geiler, Mainz-Finthen, DE;
Hans-Georg Krolla, Mainz, DE;
Lothar Meckel, Oestrich-Winkel, DE;
Assignee:
Schott Glaswerke, Mainz, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ; C03C / ; C03C / ; C03C / ;
U.S. Cl.
CPC ...
501 67 ; 501 59 ; 501 63 ; 501 64 ; 501 66 ; 501903 ;
Abstract
An optical and ophthalmic glass with high refractive index, high Abbe number and low density, which is distinguished by good chemical stability, good crystallization behavior and capability of chemical hardening, comprises (in % by weight):