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:
Dec. 06, 1994
Filed:
Oct. 18, 1993
Applicant:
Inventor:
Lisa A Tietz, Painted Post, NY (US);
Assignee:
Corning Incorporated, Corning, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C / ; C03C / ;
U.S. Cl.
CPC ...
501 66 ; 501 69 ; 501 77 ;
Abstract
A dense barium crown glass consisting essentially of, as calculated in weight % on an oxide basis, 35-42% SiO.sub.2, 11-17% B.sub.2 O.sub.3, 5.5-7.7% Al.sub.2 O.sub.3, 35-42% BaO, 0.25-1.5% Li.sub.2 O. The glasses have a liquidus temperature bellow 900.degree. C. and a viscosity at the liquidus temperature that is greater than 1000 Pa.s (10,000 poises).