Patent · US Expired

Headphones

USD449034S · kind S · design

42Cited by
6References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 29, 2000
Grant dateOct 9, 2001
Priority date
Expiry dateOct 9, 2015

Classification

  • Technology area (CPC —)General

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