Lamp including sulfur
Patent 5404076 Issued on April 4, 1995. Estimated Expiration Date: 
June 3, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 3, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesElectrodeless light source Atomic spectral lamp Fluorescent light source based on a phosphor excited by a molecular discharge High-power radiator Patent #: 4945290 InventorsAssigneeApplicationNo. 071027 filed on 06/03/1993US Classes:313/572, One torr thru 760 torr313/637, With particular gas or vapor313/638, With metal vapor313/643, One or more rare gases315/248Induction-type discharge device loadExaminersPrimary: O'Shea, SandraAttorney, Agent or FirmForeign Patent References
International ClassesH01J 017/20H01J 061/12 H01J 061/18 AbstractA high power lamp which utilzes a lamp fill containing sulfur or selenium, or compounds of these substances. An electrodeless lamp utilizing such a fill at a pressure at least as high as 1 atmosphere is excited at a power density in excess of 50 watts/cc. An arc lamp utilizing the fill at a pressure at least as high as 1 atmosphere is excited at a power density of at least 60 watts/cm.Other References
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