Patent · US Active

Protective face mask

US7774858B2 · kind B2 · utility

11Cited by
10References
11Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 29, 2007
Grant dateAug 17, 2010
Priority date—
Expiry dateAug 29, 2027

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02C5/008
  • WIPO fieldOther consumer goods
  • WIPO sectorOther fields

Abstract

A protective face mask comprising:

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