Decorative light bulb
US6733155B2 · kind B2 · utility
20Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2001 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Dec 4, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/35
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A decorative light bulb includes an outer surface forming a decorative shape and one or more inert gases inserted within the decorative light bulb to create ethereal electrical arcing having a first color. A surface feature is formed along the outer surface and a coating is applied on an inner surface of the surface feature. As a result of the coating, ethereal electrical arcing is formed having a second color along the inner surface of the surface feature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.