Patent · US Expired

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USD421870S · kind S · design

19Cited by
13References
1Claims
0Family size

Inventor

Key dates

Filing dateJun 24, 1997
Grant dateMar 28, 2000
Priority date
Expiry dateMar 28, 2014

Classification

  • Technology area (CPC —)General

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