Patent · US Expired

Lens for semiconductor element

USD420984S · kind S · design

0Cited by
8References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 19, 1997
Grant dateFeb 22, 2000
Priority date
Expiry dateFeb 22, 2014

Classification

  • Technology area (CPC —)General

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.