Compact fluorescent lamp
USD271997S · kind S · design
4Cited by
4References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1981 |
| Grant date | Dec 27, 1983 |
| Priority date | — |
| Expiry date | Dec 27, 1997 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.