Knife sharpener
Description
The broken lines in the figures illustrate portions of the knife sharpener that form no part of the claimed design.
Claims
The ornamental design for a knife sharpener, as shown and described.
Referenced Cited
U.S. Patent Documents
D315663 | March 26, 1991 | Dolbosco |
D587551 | March 3, 2009 | Friel, Sr. |
D603679 | November 10, 2009 | Smith |
D604134 | November 17, 2009 | Smith |
D604135 | November 17, 2009 | Smith |
D626397 | November 2, 2010 | Smith |
D629273 | December 21, 2010 | Friel, Sr. |
D640116 | June 21, 2011 | Smith |
D666886 | September 11, 2012 | Rieser |
D673833 | January 8, 2013 | Kay |
D680847 | April 30, 2013 | Smith |
D699534 | February 18, 2014 | Elek et al. |
D736587 | August 18, 2015 | Cavanaugh |
9649749 | May 16, 2017 | Weiner |
D817738 | May 15, 2018 | Chen |
D884450 | May 19, 2020 | Zemel |
20160207171 | July 21, 2016 | Weiner |
Patent History
Patent number: D898538
Type: Grant
Filed: Feb 28, 2020
Date of Patent: Oct 13, 2020
Inventor: Huazhu Liu (Shandong Province)
Primary Examiner: Philip S Hyder
Application Number: 29/725,942
Type: Grant
Filed: Feb 28, 2020
Date of Patent: Oct 13, 2020
Inventor: Huazhu Liu (Shandong Province)
Primary Examiner: Philip S Hyder
Application Number: 29/725,942
Classifications
Current U.S. Class:
D8/93