Patent · US Expired

Portable air treatment device

USD393703S · kind S · design

16Cited by
5References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 2, 1997
Grant dateApr 21, 1998
Priority date
Expiry dateApr 21, 2012

Classification

  • Technology area (CPC —)General

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