PTO Wrapper PDF
Dossier Espace Google
Patent
   D875147
Priority
May 10 2018
Filed
Aug 25 2018
Issued
Feb 11 2020
Expiry
Feb 11 2035
Inventors
Yu, Jiaqing
Assg.orig
SEED TECHN…
Assg.curr
SEED TECHN…
Entity
unknown
Referenced by
9
References
33
Maint.:
n/a
The ornamental design for a drill bit, as shown and described.

FIG. 1 is a front view of a drill bit according to the present application, showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left view thereof;

FIG. 4 is a right view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.
INVENTORS:

Yu, Jiaqing, Xu, Yuehua, Wang, Weixiong, Luo, Jianghe

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
11268249, Nov 27 2017 DYNATECH SYSTEMS, INC. Material removal manufacture, assembly, and method of assembly
11655681, Dec 06 2018 Halliburton Energy Services, Inc.; Halliburton Energy Services, Inc Inner cutter for drilling
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
D940767, Jan 24 2020 DYNATECH SYSTEMS, INC Cutter head for grinding machines and the like
D947910, Jan 11 2019 US Synthetic Corporation Drill bit
D960946, Jan 24 2020 DYNATECH SYSTEMS, INC. Cutter head for grinding machines and the like
D961643, Jan 24 2020 DYNATECH SYSTEMS, INC. Cutter head for grinding machines and the like
D962314, Jan 24 2020 DYNATECH SYSTEMS, INC. Cutter head for grinding machines and the like
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
9140072, Feb 28 2013 BAKER HUGHES HOLDINGS LLC Cutting elements including non-planar interfaces, earth-boring tools including such cutting elements, and methods of forming cutting elements
20050072601,
20050274549,
20060283639,
20070278017,
20120273281,
20140353046,
20160348440,
20180305790,
D307020, Apr 08 1987 Lyng Drilling Products A-S Drill bit
D340248, May 23 1991 DOVER BMCS ACQUISITION CORP Roof drill bit for mining
D351174, May 23 1991 DOVER BMCS ACQUISITION CORP Roof drill bit for mining machine
D492331, Sep 25 2002 Drill bit head
D525995, Mar 09 2004 Sandvik Intellectual Property Aktiebolag Portion of a drill bit
D529937, Apr 27 2004 APERGY BMCS ACQUISITION CORPORATION Heavy duty roof drill bit
D574403, Mar 09 2007 The William J. Brady Loving Trust Hard rock percussion drill bit with paraboloid PCD inserts
D611512, Feb 26 2008 Sandvik Intellectual Property AB Drill bit
D611970, Feb 26 2008 Sandvik Intellectual Property AB Rock drill bit
D620510, Mar 23 2006 Schlumberger Technology Corporation Drill bit
D630656, Jan 26 2010 Boart Longyear Company Drill bit
D656974, Jan 28 2009 Center Rock Inc. Drill bit
D674422, Feb 12 2007 NOVATEK IP, LLC Drill bit with a pointed cutting element and a shearing cutting element
D678368, Feb 12 2007 NOVATEK IP, LLC Drill bit with a pointed cutting element
D705827, Sep 07 2012 Sandvik Intellectual Property AB Drill bit for percussive drilling
D708238, Jun 12 2013 Drill bit
D725164, Jul 25 2013 Padley & Venables Limited Percussive drill bit
D775676, Jul 13 2015 Button drill bit
D823908, May 29 2015 EPIROC DRILLING TOOLS AKTIEBOLAG Rock drill bit
D828415, Jul 14 2016 MMC RYOTEC CORPORATION Drill bit tip
D828416, Jul 14 2016 MMC RYOTEC CORPORATION Drill bit tip
D831714, May 29 2015 EPIROC DRILLING TOOLS AKTIEBOLAG Rock drill bit
D832318, Jul 14 2016 MMC RYOTEC CORPORATION Drill bit tip
D861051, Mar 13 2018 ROBIT OYJ Drill bit
ASSIGNMENT RECORDS    Assignment records on the USPTO
/////
Executed onAssignorAssigneeConveyanceFrameReelDoc
Aug 14 2018XU, YUEHUASEED TECHNOLOGIES CORP , LTDASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0467040808 pdf
Aug 14 2018YU, JIAQINGSEED TECHNOLOGIES CORP , LTDASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0467040808 pdf
Aug 14 2018WANG, WEIXIONGSEED TECHNOLOGIES CORP , LTDASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0467040808 pdf
Aug 14 2018LUO, JIANGHESEED TECHNOLOGIES CORP , LTDASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0467040808 pdf
Aug 25 2018SEED TECHNOLOGIES CORP., LTD.(assignment on the face of the patent)
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule