Claims (1)
The ornamental design for a knife sharpener, as shown and described.
Full Description
Show full text →
FIG. 1 is a perspective view of a knife sharpener showing the new design.
FIG. 2 is a front elevational view of the knife sharpener of FIG. 1 .
FIG. 3 is a rear elevational view of the knife sharpener of FIG. 1 .
FIG. 4 is a top plan view of the knife sharpener of FIG. 1 .
FIG. 5 is a bottom plan view of the knife sharpener of FIG. 1 .
FIG. 6 is a right elevational view of the knife sharpener of FIG. 1 ; and,
FIG. 7 is a left elevational view of the knife sharpener of FIG. 1 .
The dash-dot-dash broken lines in the drawings define boundaries of the claim and form no part thereof. The dash-dash broken lines in the drawings depict portions of the knife sharpener that form no part of the claimed design.
Citations
This patent cites (30)
- US4259815
- US4558540
- USD327622
- USD329797
- USD365008
- USD372182
- USD374160
- USD375241
- USD387262
- USD409069
- USD421706
- USD465985
- USD493684
- USD520326
- USD526181
- USD681416
- US8790162
- USD744803
- USD744804
- USD772674
- USD804272
- USD814263
- USD848811
- USD850232
- USD854392
- USD866284
- USD911142
- US20060178100
- US20150283678
- US20200376629