Patent
   D831714
Priority
May 29 2015
Filed
Sep 29 2017
Issued
Oct 23 2018
Expiry
Oct 23 2033
Assg.orig
Entity
unknown
10
24
n/a
The ornamental design for a rock drill bit, as shown and described.

FIG. 1 is top perspective view of a first embodiment of a rock drill bit, showing my new design.

FIG. 2 is a bottom perspective view thereof.

FIG. 3 is a bottom plan view thereof.

FIG. 4 is a top plan view thereof.

FIG. 5 is a right side elevational view thereof.

FIG. 6 is a left side elevational view thereof.

FIG. 7 is a front elevational view thereof.

FIG. 8 is a rear elevational view thereof.

FIG. 9 is top perspective view of a second embodiment of the rock drill bit, showing my new design.

FIG. 10 is a bottom perspective view thereof.

FIG. 11 is a bottom plan view thereof.

FIG. 12 is a top plan view thereof.

FIG. 13 is a right side elevational view thereof.

FIG. 14 is a left side elevational view thereof.

FIG. 15 is a front elevational view thereof; and,

FIG. 16 is a rear elevational view thereof.

The evenly-broken dash-dash lines in the views depict environmental features for illustrative purposes only and form no part of the claimed design. The broken dot-dash lines in the views define peripheral boundaries of the claimed design and are not part of the claimed design.

Osterholm, Thomas

Patent Priority Assignee Title
D861051, Mar 13 2018 ROBIT OYJ Drill bit
D870168, Mar 13 2018 ROBIT OYJ Drill bit
D872142, May 21 2015 Center Rock Inc. Drill bit for a down-the-hole drill hammer
D875147, May 10 2018 SEED TECHNOLOGIES CORP., LTD. Drill bit
D892868, Aug 17 2017 Downhole Products Limited Tubing shoe
D894979, Mar 01 2019 Boart Longyear Company Drill bit
D894980, Mar 01 2019 Boart Longyear Company Drill bit
D894981, Mar 01 2019 Boart Longyear Company Drill bit
ER812,
ER9210,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Dec 02 2015OSTERHOLM, THOMASATLAS COPCO SECOROC ABASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0437560228 pdf
Sep 29 2017ATLAS COPCO SECOROC AB(assignment on the face of the patent)
Nov 29 2017ATLAS COPCO SECOROC ABEPIROC DRILLING TOOLS AKTIEBOLAGCHANGE OF NAME SEE DOCUMENT FOR DETAILS 0454050345 pdf
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