Patent · US Expired

Protective helmet liner

USD570055S1 · kind S1 · design

60Cited by
8References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 20, 2007
Grant dateMay 27, 2008
Priority date
Expiry dateMay 27, 2022

Classification

  • Technology area (CPC —)General

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