Patent
   D723076
Priority
Jan 25 2012
Filed
Jul 24 2012
Issued
Feb 24 2015
Expiry
Feb 24 2029
Assg.orig
Entity
unknown
13
16
n/a
The ornamental design for a masonry drill bit, as shown and described.

FIG. 1 is a front view of a complete masonry drill bit with a main cutting insert and with an auxiliary cutting insert bearing the design;

FIG. 2 is a back view of the masonry drill bit of FIG. 1;

FIG. 3 is a left view of the masonry drill bit of FIG. 1;

FIG. 4 is a right view of the masonry drill bit of FIG. 1;

FIG. 5 is a top view of the masonry drill bit of FIG. 1;

FIG. 6 is a bottom view of the masonry drill bit of FIG. 1;

FIG. 7 is a first enlarged detail perspective view of the masonry drill bit of FIG. 1;

FIG. 8 is a second enlarged detail perspective view of the masonry drill bit of FIG. 1; and,

FIG. 9 is a third enlarged detail perspective view of the masonry drill bit of FIG. 1.

The portions included in the broken line boxes/cubes in the drawings depicted in broken line format form no part of the claimed design.

Lampe, Rainer, Kersten, Heinrich

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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jul 24 2012HELLER TOOLS GMBH(assignment on the face of the patent)
Aug 30 2012LAMPE, RAINERIllinois Tool Works, IncASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0290540656 pdf
Aug 30 2012KERSTEN, HEINRICHIllinois Tool Works, IncASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0290540656 pdf
Apr 30 2014Illinois Tool Works IncITW HELLER GMBHASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0329580526 pdf
Jun 16 2014ITW HELLER GMBHHELLER TOOLS GMBHCHANGE OF NAME SEE DOCUMENT FOR DETAILS 0338130028 pdf
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