Patent · US Expired

Key layout for a telephone handset

USD406137S · kind S · design

40Cited by
38References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 27, 1998
Grant dateFeb 23, 1999
Priority date
Expiry dateFeb 23, 2013

Classification

  • Technology area (CPC —)General

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