Diamond whetstone
Description
The broken lines illustrate portions of the environment structure which forms no part of the claimed design.
Claims
The ornamental design for a diamond whetstone, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
1935592 | November 1933 | Jake |
1959647 | May 1934 | Jake |
2453207 | November 1948 | Dunn |
D290222 | June 9, 1987 | Moody |
4903438 | February 27, 1990 | Smith |
D306816 | March 27, 1990 | Hudnall |
9216487 | December 22, 2015 | Dovel |
- AccuSharp Deluxe Tri-Stone Knife & Tool Sharpening System Kit, Amazon.com, Available since Aug. 2, 2016.
- Smith's—TRI6 TRI-6 Arkansas TRI-HONE Sharpening Stones System Gray, Amazon.com Available since Nov. 12, 2003.
Patent History
Patent number: D947644
Type: Grant
Filed: Nov 2, 2020
Date of Patent: Apr 5, 2022
Inventor: Dongchen Huang (Jiangyin)
Primary Examiner: Philip S Hyder
Application Number: 29/756,962
Type: Grant
Filed: Nov 2, 2020
Date of Patent: Apr 5, 2022
Inventor: Dongchen Huang (Jiangyin)
Primary Examiner: Philip S Hyder
Application Number: 29/756,962
Classifications
Current U.S. Class:
D8/91;
D8/93