Patent · US Expired

Water filter

USD321745S · kind S · design

31Cited by
6References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 15, 1990
Grant dateNov 19, 1991
Priority date
Expiry dateNov 19, 2005

Classification

  • Technology area (CPC —)General

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