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:
Jul. 14, 1987
Filed:
Oct. 08, 1985
U.S. Philips Corporation, New York, NY (US);
Abstract
The glass composition in accordance with the invention is characterized by the absence of alkali metal oxides and by the presence of at least 10% by weight of barium oxide. The glass composition in accordance with the invention has favorable working properties (melting temperature below 1500.degree. C., working range in excess of 200 Celsius degrees, it is very corrosion resistant (also in a strong electric field), it is resistant to metal vapors including mercury vapor, it does not attack a phosphor and it is not subject to blackening. The glass composition in accordance with the invention is extremely suitable for use in fluorescent lamps (TL-, SL- and PL-lamps) and in projection-television face plates.