Claims (1)
Claim 1 (Independent)
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 left elevational view of the knife sharpener of FIG. 1 .
FIG. 5 is a right elevational view of the knife sharpener of FIG. 1 .
FIG. 6 is a top plan view of the knife sharpener of FIG. 1 ; and,
FIG. 7 is a bottom plan view of the knife sharpener of FIG. 1 .
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 (71)
- US308046
- US1148303
- US1368218
- US1832968
- US1935592
- US2191899
- US2557093
- US2604738
- US3280514
- US3654823
- US3733933
- US3800632
- US3913903
- US3924360
- US4216627
- US4320892
- US4404873
- USD273081
- US4441279
- US4471951
- US4486982
- US4497142
- US4512112
- US4538382
- USD287815
- US4714239
- US4731953
- US4777770
- US4903438
- US5138801
- US5185958
- US5195275
- USD335621
- US5363602
- US5431068
- USD363202
- USD363869
- US5472375
- US5547419
- US6227958
- US6579163
- US7052385
- US7144310
- US7182678
- US7867062
- US8262438
- US8277291
- US8292701
- US8303381
- US8323077
- US9216488
- US10131028
- US10201884
- US10744614
- USD977324
- USD986708
- USD987402
- USD992392
- USD995258
- US20040140602
- US20050048885
- US20100187740
- US20110024962
- US20140342644
- US20190210177
- US20220088748
- US204125
- US102005033806
- US102119520
- US2004037488
- US2017200431