Patent
   D989826
Priority
Oct 16 2020
Filed
Jun 15 2021
Issued
Jun 20 2023
Expiry
Jun 20 2038
Assg.orig
Entity
unknown
0
11
n/a
The ornamental design for a drill bit, as shown and described.

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

FIG. 2 is a front view of FIG. 1;

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

FIG. 4 is a left side view of FIG. 1;

FIG. 5 is a right side view of FIG. 1;

FIG. 6 is a top view of FIG. 1;

FIG. 7 is a bottom view of FIG. 1;

FIG. 8 is a first perspective view of a second embodiment of a drill bit showing our new design;

FIG. 9 is a front view of FIG. 8;

FIG. 10 is a rear view of FIG. 8;

FIG. 11 is a left side view of FIG. 8;

FIG. 12 is a right side view of FIG. 8;

FIG. 13 is a top view of FIG. 8;

FIG. 14 is a bottom view of FIG. 8; and,

FIG. 15 is a second perspective view of FIG. 8.

Wang, Yongfeng, Fang, Haijiang, Du, Weifeng

Patent Priority Assignee Title
Patent Priority Assignee Title
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20220017798,
D264217, Jul 17 1979 Drill bit protector
D353392, Sep 29 1992 CLEARSNAP HOLDING, INC Combined stamp pad and container therefor
D474213, May 29 2002 Valenite, LLC Indexable cutting insert
D502952, Nov 07 2003 Substrate for manufacturing cutting elements
D587732, Dec 07 2004 Substrate for manufacturing cutting elements
D857067, Sep 21 2017 OSG CORPORATION Cutting insert
D908753, Nov 16 2017 US Synthetic Corporation Cutting tool
D911399, Dec 06 2018 Halliburton Energy Services, Inc.; Halliburton Energy Services, Inc Innermost cutter for a fixed-cutter drill bit
D924949, Jan 11 2019 US Synthetic Corporation Cutting tool
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Jun 09 2021FANG, HAIJIANGSF DIAMOND CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0566100795 pdf
Jun 09 2021WANG, YONGFENGSF DIAMOND CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0566100795 pdf
Jun 09 2021DU, WEIFENGSF DIAMOND CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0566100795 pdf
Jun 15 2021SF DIAMOND CO., LTD.(assignment on the face of the patent)
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