Patent · US Expired

Headset

USD333137S · kind S · design

65Cited by
5References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 12, 1991
Grant dateFeb 9, 1993
Priority date
Expiry dateFeb 9, 2007

Classification

  • Technology area (CPC —)General

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