Patent · US Expired

Air purifier

USD639413S1 · kind S1 · design

22Cited by
13References
1Claims
0Family size

Inventor

Key dates

Filing dateJun 9, 2010
Grant dateJun 7, 2011
Priority date
Expiry dateJun 7, 2025

Classification

  • Technology area (CPC —)General

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