Patent · US Expired

Water filter

USD316741S · kind S · design

36Cited by
6References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 19, 1990
Grant dateMay 7, 1991
Priority date
Expiry dateMay 7, 2005

Classification

  • Technology area (CPC —)General

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