Drill bit

- SF DIAMOND CO., LTD.
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Description

FIG. 1 is a first perspective view of a drill bit showing our new design;

FIG. 2 is a side view of FIG. 1, the front, rear, right and left side views being identical;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a bottom view of FIG. 1; and,

FIG. 5 is a second perspective view of FIG. 1.

Claims

The ornamental design for a drill bit, as shown and described.

Referenced Cited
U.S. Patent Documents
D264217 May 4, 1982 Prause
D353392 December 13, 1994 Winston
D474213 May 6, 2003 Brockett
D502952 March 15, 2005 Achilles
D587732 March 3, 2009 Morozov
D857067 August 20, 2019 Hayakawa
D908753 January 26, 2021 Dunaway
D911399 February 23, 2021 Atkins
D924949 July 13, 2021 Mortensen
20200087758 March 19, 2020 Zhao
20220017798 January 20, 2022 Haijiang
Patent History
Patent number: D982631
Type: Grant
Filed: Jun 15, 2021
Date of Patent: Apr 4, 2023
Assignee: SF DIAMOND CO., LTD. (Henan)
Inventors: Haijiang Fang (Henan), Yongfeng Wang (Henan), Weifeng Du (Henan)
Primary Examiner: Michael C Stout
Assistant Examiner: Fritzgerald L Butac
Application Number: 29/794,907
Classifications