Patent · US Expired

Apparatus for the purification of water

USD420720S · kind S · design

14Cited by
59References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 27, 1998
Grant dateFeb 15, 2000
Priority date
Expiry dateFeb 15, 2014

Classification

  • Technology area (CPC —)General

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