Patent · US Expired

Chemical feeder

USD339408S · kind S · design

4Cited by
5References
1Claims
0Family size

Inventor

Key dates

Filing dateJun 14, 1991
Grant dateSep 14, 1993
Priority date
Expiry dateSep 14, 2007

Classification

  • Technology area (CPC —)General

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