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Patent
   D517891
Priority
Feb 13 2003
Filed
Apr 04 2003
Issued
Mar 28 2006
Expiry
Mar 28 2020
Inventors
Tsuchida, …
Assg.orig
Master Cut…
Assg.curr
Master Cut…
Entity
unknown
Referenced by
16
References
31
Maint.:
n/a
The ornamental design for a blade sharpener, as shown and described.

FIG. 1 is a perspective view of a blade sharpener showing my new design;

FIG. 2 is a left side view thereof; and,

FIG. 3 is a right side view thereof.

The broken line showing of the raised element on the handle is for illlustrative purposes only and forms no part of the claimed design.
INVENTORS:

Tsuchida, Mino

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
11376713, Mar 09 2021 SHARKNINJA OPERATING LLC Knife sharpening systems
11806839, Mar 09 2021 SHARKNINJA OPERATING LLC Knife sharpening systems
D624799, Aug 17 2009 Robert Welch Designs Limited Hand held knife sharpener
D640523, Jun 07 2010 WÜSTHOF USA, INC Four stage sharpener
D640909, Jun 07 2010 WÜSTHOF USA, INC Two stage sharpener
D665647, Jan 11 2012 Edgecraft Corporation Two-stage manual knife sharpener
D668524, Jan 24 2012 Sharpener
D669755, Jan 16 2012 Edgecraft Corporation Two stage manual knife sharpener
D680399, Mar 07 2012 ED WUESTHOF DREIZACKWERK KG; Edgecraft Corporation Three stage knife sharpener
D680846, Jan 17 2012 SMITH S CONSUMER PRODUCTS, INC Adjustable manual abrasive sharpener
D688545, Mar 07 2012 Edgecraft Corporation Knife sharpener
D715618, Aug 23 2012 Smith's Consumer Products, Inc Abrasive sharpener
D725453, Feb 28 2013 American Learning Systems, Inc. Blade sharpener housing
D763650, Dec 15 2014 Zwilling J.A. Henckels AG Sharpener
D773913, Dec 15 2014 Zwilling J.A. Henckels AG Sharpener
D842673, Aug 01 2016 YUZE LTDA Sharpener
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
1342275,
4050197, Jan 28 1974 Blade and scissors sharpener
4627194, Mar 12 1984 Method and apparatus for knife and blade sharpening
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4897965, Mar 12 1984 Knife sharpening apparatus
4928436, Jan 20 1988 Fiskars Oy AB Device for sharpening knives
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5148634, Mar 12 1984 Edgecraft Corp. Scissor sharpening apparatus with magnetic guide
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563023,
6398633, Jun 02 2000 McGowan Manufacturing Co. Two stage knife sharpener
142880,
162768,
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D274497, Feb 22 1982 EKCO HOUSEWARES, INC , A DE CORP Knife sharpener
D288657, Apr 03 1984 OY FISKARS AB, A CORP OF FINLAND Knife sharpener
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D357395, Apr 30 1993 Edgecraft Corp.; Edgecraft Corporation Knife sharpener
D368217, Apr 30 1993 Edgecraft Corporation Knife sharpener
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GB2185919,
ASSIGNMENT RECORDS    Assignment records on the USPTO
//
Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 04 2003Master Cutlery Corporation(assignment on the face of the patent)
Sep 17 2003TSUCHIDA, MINOMaster Cutlery CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0145200640 pdf
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
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