Claims (1)
Claim 1 (Independent)
The ornamental design for a protective face mask, as shown and described.
Full Description
Show full text →
1. Protective face mask
1 . 1 : Perspective
1 . 2 : Front
1 . 3 : Back
1 . 4 : Right
1 . 5 : Left
1 . 6 : Bottom
1 . 7 : Top
The broken lines shown in the drawings illustrate portions of the protective face mask and form no part of the claimed design.
Citations
This patent cites (13)
- USD273145
- US5307796
- US6041782
- US6923182
- US6988500
- USD844253
- USD870390
- USD897606
- USD923775
- USD941989
- USD958967
- US20090211581
- US20110270085