Patent · US Expired

Sight glass

USD423538S · kind S · design

3Cited by
14References
1Claims
0Family size

Inventor

Key dates

Filing dateMar 25, 1999
Grant dateApr 25, 2000
Priority date
Expiry dateApr 25, 2014

Classification

  • Technology area (CPC —)General

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