Patent · US Expired

Pencil sharpener

USD451961S · kind S · design

9Cited by
3References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 17, 2001
Grant dateDec 11, 2001
Priority date
Expiry dateDec 11, 2015

Classification

  • Technology area (CPC —)General

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