Alkaline-earth aluminosilicate glass, containing CA and BA,...

Details Alkaline-earth aluminosilicate glass, containing CA and BA,... Alkaline-earth aluminosilicate glass, containing CA and BA,...

2006-01-24

2006-01-24

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

With gas or vapor

Envelope with particular structure

C313S641000, C501S055000, C501S056000, C501S057000, C501S058000, C501S059000, C501S060000, C501S061000, C501S062000, C501S063000, C501S064000, C501S065000, C501S066000, C501S067000, C501S068000

Reexamination Certificate

active

06989633

ABSTRACT:
An alkaline-earth aluminosilicate glass having a composition (in % by weight, based on oxide) of SiO2>55-64; Al2O313-18; B2O30-5.5; M5O 0-7; CaO 5.5-14; SrO 0-8; BaO 6-17; ZrO20-2; CeO20-0.3; TiO20-0.5; CoO 0.01-0.035; Fe2O30.005-0.05; and NiO 0-0.03 is suitable for use in lamp bulbs

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Paper filed by Opposer Telux Lampenrohr GmbH dated Feb. 25, 2005.
Opposition by Telux Lampenrohr GmbH against Schott Glas' German Patent No. 10204149.0-45 (Sep. 10, 2003).
Response to Opposition by Schott Glas (Mar. 31, 2004).
Excerpt from Werner Vogel's Glaschemistry, p. 261 (1992).
Glas Natur, Struktur und Eigenschaften, p. 1 of 3.Eigenschaften des Glases, p. 188, 1977.
Technik der Glashersteliung, pp. 32-33.
Werner Vogel Glas-chemie, pp. 217, 223, 225.
Lichtprogram '98/99 Es Gibt Licht. Und Es Gibt Osram., DIN 5033.
F. Kohlrausch, “Praktische Physik”, Zum Gebrauch Für Unterricht, Forschung Und Technik, pp. 270 4.1

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