Knife sharpener

Knife sharpener
D303209

PTO Wrapper PDF
Dossier Espace Google

Patent D303209
Priority Sep 19 1986
Filed Sep 19 1986
Issued Sep 05 1989
Expiry Sep 05 2003
Inventors Friel, Dan…
Assg.orig EDGECRAFT …
Assg.curr Edgecraft …
Entity unknown
Referenced by 48
References 5
Maint.: n/a

The ornamental design for a knife sharpener, as shown and described.

FIG. 1 is a side elevational view of a knife sharpener showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is an end elevational view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a top perspective view thereof.

INVENTORS:

Friel, Daniel D.

THIS PATENT IS REFERENCED BY THESE PATENTS:

Patent	Priority	Assignee	Title
6802763,	Oct 25 2002	Salton, Inc.; Hop Shing M&P Manufactory Limited	Apparatus for sharpening blades
6997795,	Aug 13 2003	Edgecraft Corporation	Versatile manual scissor sharpener
7235004,	Mar 27 2003	Edgecraft Corporation	Precision means for sharpening and creation of microblades along cutting edges
7287445,	Mar 27 2003	Edgecraft Corporation	Apparatus for precision steeling/conditioning of knife edges
7517275,	Mar 27 2003	Edgecraft Corp.; Edgecraft Corporation	Apparatus for precision steeling/conditioning of knife edges
7686676,	Apr 18 2007	Edgecraft Corporation	Precision sharpener for hunting and Asian knives
8267750,	Mar 27 2003	Edgecraft Corporation	Apparatus for precision steeling/conditioning of knife edges
8430720,	Mar 27 2003	Edgecraft Corporation	Apparatus for precision steeling/conditioning of knife edges
8585462,	Dec 22 2011	Edgecraft Corp.; Edgecraft Corporation	Precision sharpener for ceramic knife blades
8678882,	Jun 26 2013	Edgecraft Corporation	Combination sharpener assembly
8721399,	Jun 26 2013	Edgecraft Corporation	Manually operated sharpener
9168627,	Mar 11 2008	Edgecraft Corporation	Knife sharpener for asian and european/american knives
9242331,	Mar 13 2014	Edgecraft Corporation	Electric sharpener for ceramic and metal blades
9649749,	Jan 16 2015	Edgecraft Corporation	Manual sharpener
9656372,	Jan 16 2015	Edgecraft Corporation	Sharpener for thick knives
D310620,	Feb 01 1988		Knife sharpener
D317554,	Jun 06 1988		Knife sharpener
D326986,	Mar 02 1990	National Presto Industries, Inc.	Knife sharpener
D328410,	Apr 12 1989	Edgecraft Corporation	Knife sharpener
D332210,	Oct 13 1989	Fiskars Oy AB	Sharpener for scissors
D363867,	Aug 08 1994	CUISINE DE FRANCE, LTD	Knife sharpener
D409891,	Jan 09 1998	Edgecraft Corporation	Sharpener
D537698,	Jan 19 2005	KAI R & D CENTER CO , LTD	Hand sharpener
D542616,	Mar 10 2005	Edgecraft Corporation	Electric knife sharpener
D543430,	Mar 10 2005	Edgecraft Corporation	Electric knife sharpener
D567611,	Mar 11 2005	Edgecraft Corporation	Electric knife sharpener having a brushed texture housing
D575124,	Mar 15 2008	SMITH S CONSUMER PRODUCTS, INC	Electric sharpener
D620332,	Aug 07 2009	Edgecraft Corporation	Cross-grind sharpener
D632153,	Feb 15 2010	NATIONAL PRESTO INDUSTRIES, INC	Adjustable knife sharpener
D641225,	Jun 21 2010	Edgecraft Corporation	Three stage manual knife sharpener
D641226,	Jun 21 2010	Edgecraft Corporation	Two stage manual knife sharpener
D651887,	Feb 21 2011	Edgecraft Corporation	Two stage manual knife sharpener
D652284,	Feb 16 2011	Edgecraft Corporation	Three stage manual knife sharpener
D655145,	May 03 2010	Smith Abrasives, Inc	Multi-functional sharpener
D665647,	Jan 11 2012	Edgecraft Corporation	Two-stage manual knife 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
D688545,	Mar 07 2012	Edgecraft Corporation	Knife sharpener
D699534,	Jan 07 2013	Edgecraft Corporation	Knife sharpener
D705625,	May 21 2013	Edgecraft Corporation	Combination sharpener having two sharpening components
D721937,	Feb 07 2014	Edgecraft Corporation	Electric knife sharpener
D754514,	Sep 02 2015	Edgecraft Corporation	Compact manual sharpener
D803648,	Mar 13 2017	Edgecraft Corporation	Two stage electric sharpener
D813004,	Feb 24 2016	Edgecraft Corporation	Compact manual sharpener
D875496,	Apr 04 2018		Sharpener
ER6212,
ER8967,
RE43884,	Mar 27 2003	Edgecraft Corporation	Apparatus for precision steeling/conditioning of knife edges

THIS PATENT REFERENCES THESE PATENTS:

Patent	Priority	Assignee	Title
2775075,
3289498,
3332173,
176887,
D280286,	Jun 29 1983	U.S. Philips Corporation	Knife sharpener

ASSIGNMENT RECORDS Assignment records on the USPTO

Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Sep 09 1986	FRIEL, DANIEL D	EDGECRAFT CORPORATION, A CORP OF DE	ASSIGNMENT OF ASSIGNORS INTEREST	005110	0585	pdf
Sep 19 1986		Edgecraft Corp.	(assignment on the face of the patent)

MAINTENANCE FEES AND DATES: Maintenance records on the USPTO

n/a

Date	Maintenance Fee Events

n/a

Date	Maintenance Schedule