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. 10, 1991
Filed:
Jan. 09, 1991
Applicant:
Inventors:
George H Beall, Big Flats, NY (US);
Candace J Quinn, Corning, NY (US);
Assignee:
Corning Incorporated, Corning, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ; C03C / ; C03C / ; C03C / ;
U.S. Cl.
CPC ...
501 44 ; 501 45 ; 501 48 ; 501 73 ;
Abstract
This invention is directed to the production of glasses demonstrating working temperatures below about 450.degree. C., transition temperatures no higher than about 350.degree. C., and good resistance to attack by mild aqueous alkaline solutions consisting essentially, expressed in terms of mole percent on the oxide basis of