Patent · US Expired

Pair of binocular spectacles

USD541837S1 · kind S1 · design

6Cited by
12References
1Claims
0Family size

Inventor

Key dates

Filing dateAug 31, 2005
Grant dateMay 1, 2007
Priority date
Expiry dateMay 1, 2021

Classification

  • Technology area (CPC —)General

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