Lead-free amber-colored electric lamp
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United States of America Patent
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Jun 1, 2004
Grant Date -
Aug 29, 2002
app pub date -
Dec 4, 2001
filing date -
Dec 5, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to electric lamps and more particularly to automotive signal lamps. Lead-free, cadmium-free, sulfate-refined glass compositions are described for use in electric lamps, which glass is amber colored and comprises no toxic or forbidden components which could be harmful to the environment such as lead oxide, antimony oxide, selenium or cadmium.
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Cited Art Landscape
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