Patent · US Expired

Mechanical pencil

USD450769S · kind S · design

42Cited by
7References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 23, 2001
Grant dateNov 20, 2001
Priority date—
Expiry dateNov 20, 2015

Classification

  • Technology area (CPC —)General

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