Compact fluorescent lamp with outer envelope
US4745323A · kind A · utility
8Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1986 |
| Grant date | May 17, 1988 |
| Priority date | — |
| Expiry date | Feb 26, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A compact fluorescent lamp of the twin tube or double twin type which is protected by an outer envelope mounted to the fluorescent lamp or the housing which contains the fluorescent lamp ballast. In a preferred embodiment the outer envelope is in the shape of an incandescent lamp envelope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.