Patent · US Expired

Portable voice recorder

USD407402S · kind S · design

11Cited by
13References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 11, 1997
Grant dateMar 30, 1999
Priority date
Expiry dateMar 30, 2013

Classification

  • Technology area (CPC —)General

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