Patent · US Expired

Air purifier

USD551328S1 · kind S1 · design

14Cited by
13References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 18, 2006
Grant dateSep 18, 2007
Priority date
Expiry dateSep 18, 2021

Classification

  • Technology area (CPC —)General

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