Patent · US Expired

Sharpener

USD654342S1 · kind S1 · design

19Cited by
20References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 30, 2010
Grant dateFeb 21, 2012
Priority date
Expiry dateFeb 21, 2026

Classification

  • Technology area (CPC —)General

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