Granted Patent
S1
US 1,087,714 · App. 29/882,635 · Granted Aug 12, 2025
Knife sharpener
Assignee:
Darex, LLC
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Claims (1)
The ornamental design for a knife sharpener, as shown and described.
Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Jan 17, 2023
From: DOVEL, JACOB D.
To: DAREX, LLC
Reel/Frame 062395/0845 →
References Cited (142)
US 90433A
· Dinsmore
· 1869
[cited by examiner]
US 308046A
· Williams
· 1884
[cited by applicant]
US 363202A
· Brainard
· 1887
[cited by applicant]
US 523908A
· Sly
· 1894
[cited by examiner]
US 606000A
· Clark
· 1898
[cited by examiner]
US 699890A
· McLean
· 1902
[cited by examiner]
US 1368218A
· Chenette
· 1921
[cited by applicant]
US 1453409A
· Scott
· 1923
[cited by examiner]
US 1464442A
· Palser
· 1923
[cited by examiner]
US 1541835A
· McKinley
· 1925
[cited by examiner]
US 1598147A
· Mickelsen
· 1926
[cited by applicant]
US 1774680A
· Thomas
· 1930
[cited by applicant]
US 1832968A
· Armey
· 1931
[cited by applicant]
US 1890582A
· Koss, Jr.
· 1932
[cited by examiner]
US 1904075A
· Petrich
· 1933
[cited by examiner]
US 1906635A
· Schick
· 1933
[cited by examiner]
US 1935592A
· Stivers
· 1933
[cited by applicant]
US 2180230A
· Freeth
· 1939
[cited by examiner]
US 2191899A
· Primak
· 1940
[cited by applicant]
US 2259095A
· Aiello, Sr.
· 1941
[cited by applicant]
US 2528943A
· Calabrese
· 1950
[cited by examiner]
US 2557093A
· Garbarino
· 1951
[cited by applicant]
US 2604738A
· Ramey
· 1952
[cited by applicant]
US 2652667A
· Arnold
· 1953
[cited by applicant]
US 3088252A
· Schmidt
· 1963
[cited by applicant]
US 3254630A
· Tufan
· 1966
[cited by applicant]
US 3280514A
· Raymond
· 1966
[cited by applicant]
US 3654823A
· Juranitch
· 1972
[cited by applicant]
US 3733933A
· Longbrake
· 1973
[cited by applicant]
US 3800632A
· Juranitch
· 1974
[cited by applicant]
US 3913903A
· Seward et al.
· 1975
[cited by applicant]
US 3924360A
· Haile et al.
· 1975
[cited by applicant]
US 4216627A
· Westrom
· 1980
[cited by examiner]
US 4320892A
· Longbrake
· 1982
[cited by examiner]
US 4324157A
· Soutsos
· 1982
[cited by applicant]
US 4404873A
· Radish
· 1983
[cited by applicant]
US D273081S
· Levine
· 1984
[cited by applicant]
US 4441279A
· Storm et al.
· 1984
[cited by applicant]
US 4471951A
· Levine
· 1984
[cited by applicant]
US 4486982A
· Longbrake
· 1984
[cited by applicant]
US 4497142A
· Sessoms
· 1985
[cited by applicant]
US D278237S
· LeVine
· 1985
[cited by examiner]
US 4512112A
· Levine
· 1985
[cited by applicant]
US 4538382A
· Johannsen
· 1985
[cited by applicant]
US D287815S
· Johannsen
· 1987
[cited by applicant]
US 4714239A
· Levine
· 1987
[cited by applicant]
US 4731953A
· Owen
· 1988
[cited by applicant]
US 4777770A
· LeVine
· 1988
[cited by examiner]
US 4903438A
· Smith
· 1990
[cited by applicant]
US 5138801A
· Anthon
· 1992
[cited by applicant]
US 5185958A
· Dale
· 1993
[cited by applicant]
US 5195275A
· McLean
· 1993
[cited by applicant]
US D335621S
· Moody
· 1993
[cited by applicant]
US 5363602A
· Anthon et al.
· 1994
[cited by applicant]
US 5431068A
· Alsch
· 1995
[cited by applicant]
US D363202S
· Ross
· 1995
[cited by examiner]
US D363869S
· Ross
· 1995
[cited by applicant]
US 5472375A
· Pugh
· 1995
[cited by applicant]
US 5547419A
· Hulnicki
· 1996
[cited by applicant]
US 6227958B1
· Neuberg
· 2001
[cited by examiner]
US 6579163B1
· Ross et al.
· 2003
[cited by applicant]
US 7052385B1
· Swartz
· 2006
[cited by applicant]
US 7144310B2
· Longbrake
· 2006
[cited by applicant]
US 7182678B2
· Keska
· 2007
[cited by applicant]
US 7867062B2
· Swartz
· 2011
[cited by applicant]
US 7874896B1
· Watson
· 2011
[cited by examiner]
US D640115S
· Huff
· 2011
[cited by examiner]
US 8016279B1
· Su
· 2011
[cited by examiner]
US 8262438B1
· Allison et al.
· 2012
[cited by applicant]
US 8277291B2
· Dovel
· 2012
[cited by applicant]
US 8292701B2
· Heng
· 2012
[cited by applicant]
US 8303381B2
· Schwartz
· 2012
[cited by applicant]
US 8323077B2
· Nakoff
· 2012
[cited by applicant]
US 8998680B1
· Dovel
· 2015
[cited by examiner]
US 9216488B2
· Allison
· 2015
[cited by applicant]
US D862194S
· Wood
· 2019
[cited by applicant]
US D977324S
· Baker et al.
· 2023
[cited by applicant]
US D986708S
· Baker et al.
· 2023
[cited by applicant]
US D987402S
· Baker et al.
· 2023
[cited by applicant]
US D992392S
· Wang
· 2023
[cited by applicant]
US D995258S
· Wang
· 2023
[cited by applicant]
US 20060217046A1
· Swartz
· 2006
[cited by examiner]
US 20080075942A1
· Gerard et al.
· 2008
[cited by applicant]
US 20110090072A1
· Haldeman
· 2011
[cited by applicant]
US 20140342644A1
· Hasegawa
· 2014
[cited by applicant]
AU 204125B
· 1956
[cited by applicant]
CN 216781217U
· 2022
[cited by examiner]
DE 102005033806A1
· 2006
[cited by applicant]
DE 102010002843A1
· 2011
[cited by applicant]
EP 1434689A2
· 2004
[cited by applicant]
GB 1224028A
· 1971
[cited by applicant]
JP 60176728A
· 1985
[cited by applicant]
KR 102119520B1
· 2020
[cited by applicant]
WO 0141992A2
· 2001
[cited by applicant]
WO 2004037488A1
· 2004
[cited by applicant]
WO 2017200431A1
· 2017
[cited by applicant]
Pofessional Prescision Adjust Knife Sharpener Tool, by Work Sharp, online at amazon.com, URL/: https://www.amazon.com/Sharp-Professional-Precision-Adjust-Sharpener/dp/B0BTTXVQRQ, First available on Sep. 3, 2023, Retriev…
[cited by examiner]
Pro-Precision-Adjust-User-Guide, by Work Sharp. Dated Dec. 15, 2022. Found online [Oct. 11, 2024]. . . https://www.worksharptools.com/cdn/shop/files/PP0005063-Rev-1-Pro-Precision-Adjust-User-Guide_ae53a4b2-085b-4cdb-81d…
[cited by examiner]
Work Sharp Professional, by Tactical Tavern Tomas. Dated Apr. 2, 2023. Found online [Oct. 11, 2024]. https://www.youtube.com/watch?v=XHAyVRDLFfw.
[cited by examiner]
Work Sharp Precision, by Atlas Seller. Dated Aug. 10, 2021. Found online [Oct. 11, 2024]. https://www.amazon.com/Work-Sharp-Precision-Additional-Sharpening/dp/B09FWWDFF9.
[cited by examiner]
“User Manual for the Ermak-10 knife sharpener”; https://sharpeningtool.eu/sites/default/files/temp/instrukcia_e10_en.pdf; obtained from the Vetako website on Mar. 14, 2022; 6 pages.
[cited by applicant]
“How to Get Your Knives Razor Sharp”; retrieved from https://knifeinformer.com/how-to-get-your-knives-razor-sharp, Jan. 24, 2023, 5 pages.
[cited by applicant]
International Search Report from corresponding PCT Application No. PCT/US2021/05129, Jan. 6, 2022.
[cited by applicant]
Office Action received for Chinese Patent Application No. 202330440616.0 , mailed on May 11, 2024, 3 pages (2 pages of English Translation and 1 page of Original Document).
[cited by applicant]
“Benchtop Knife Sharpener,” Cold steel, Retrieved from https://www.coldsteel.com/benchtop-knife-sharpener/#productView-description-ph, Retrieved on Dec. 15, 2023, pp. 3.
[cited by applicant]
“KakBritva Luch Knife Sharpener,” Gritomatic, Retrieved from https://www.gritomatic.com/products/kakbritva-luch-knife-sharpener, Retrieved on Dec. 12, 2023, pp. 5.
[cited by applicant]
“Kazak Pro Knife Sharpener Review!,” Green Beetle, Retrieved from https://www.youtube.com/watch?v=vHdWdiesCkU, Retrieved on Nov. 2023, pp. 2.
[cited by applicant]
U.S. Appl. No. 17/473,380; mailed Jul. 18, 2022; Notice of Allowance.
[cited by applicant]
U.S. Appl. No. 17/743,380; mailed Apr. 4, 2022; Office Action.
[cited by applicant]
International Search Report and Written Opinion received for PCT Patent Application No. PCT/US2021/051292, mailed on Feb. 14, 2022, 23 pages.
[cited by applicant]
Web page for Ermak-5, https://sharpeningtool.eu/product/ermak-5; obtained from the Vetako website on Dec. 5, 2022; 7 pages.
[cited by applicant]