Electric lamp

Details Electric lamp Electric lamp

2008-05-27

2008-05-27

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

With gas or vapor

Having lead-in shield

C313S318070, C313S331000, C313S333000

Reexamination Certificate

active

07378798

ABSTRACT:
An electric lamp has a lamp vessel accommodating an electric element. The element is connected to current conductors including molybdenum portions which have a coating of material chosen from the group of chromium-manganese, chromium-cobalt, chromium-iron and chromium-boron alloys as a protection against oxidation.

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patent: 3959682 (1976-05-01), Wesselink et al.
patent: 4015165 (1977-03-01), Hardies
patent: 4145631 (1979-03-01), Saito
patent: 4777404 (1988-10-01), Kiesel et al.
patent: 2002/0008477 (2002-01-01), Leichtfried et al.
patent: 688859 (1953-03-01), None

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