Electric lamp
US7378798B2 · kind B2 · utility
6Cited by
9References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2003 |
| Grant date | May 27, 2008 |
| Priority date | — |
| Expiry date | Jun 21, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01K1/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.