Patent · US Expired

Centerpiece for filter element

USD444219S · kind S · design

96Cited by
13References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 5, 1999
Grant dateJun 26, 2001
Priority date
Expiry dateJun 26, 2015

Classification

  • Technology area (CPC —)General

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