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. 20, 1988
Filed:
Sep. 02, 1987
Applicant:
Inventor:
Gerald J Fine, Corning, NY (US);
Assignee:
Corning Glass Works, Corning, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C / ; C03C / ; C03C / ;
U.S. Cl.
CPC ...
501 66 ; 501 56 ; 501905 ;
Abstract
Alkali boroaluminosilicate glasses exhibiting moderately high thermal expansion coefficients, good melting characteristics, and a UV transmittance of at least 80% in 1 mm thickness at a wavelength of 254 nm are described, such glasses consisting essentially of about 58-62%, SiO.sub.2, 15-18% B.sub.2 O.sub.3, 11.5-14.5% Al.sub.2 O.sub.3, 1-2.5% Li.sub.2 O, 5.5-6.5% Na.sub.2 O, 0-2% K.sub.2 O, and 0-0.6% Cl.