Patent · US Expired

Headphone

USD633471S1 · kind S1 · design

125Cited by
24References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 27, 2010
Grant dateMar 1, 2011
Priority date
Expiry dateMar 1, 2025

Classification

  • Technology area (CPC —)General

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