Patent · US Expired

Stereo headphone

USD388436S · kind S · design

4Cited by
3References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 25, 1996
Grant dateDec 30, 1997
Priority date
Expiry dateDec 30, 2011

Classification

  • Technology area (CPC —)General

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