Patent · US Expired

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USD317850S · kind S · design

7Cited by
3References
1Claims
0Family size

Inventors

Key dates

Filing dateMay 25, 1990
Grant dateJul 2, 1991
Priority date
Expiry dateJul 2, 2005

Classification

  • Technology area (CPC —)General

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