Patent
   D892278
Priority
Mar 31 2020
Filed
Mar 31 2020
Issued
Aug 04 2020
Expiry
Aug 04 2035
Assg.orig
Entity
unknown
20
21
n/a
I claim the ornamental design of a tandem sub, as shown and described.

FIG. 1 is a top up, perspective view of a tandem sub, showing an embodiment of my new design;

FIG. 2 is a top down, perspective view of the tandem sub as shown in FIG. 1;

FIG. 3 is a bottom up, perspective view of the tandem sub as shown in FIG. 1;

FIG. 4 is a bottom down, perspective view of the tandem sub as shown in FIG. 1;

FIG. 5 is a bottom elevated view of the tandem sub as shown in FIG. 1;

FIG. 6 is a top elevated view of the tandem sub as shown in FIG. 1;

FIG. 7 is a left side elevated view of the tandem sub as shown in FIG. 1;

FIG. 8 is a right side elevated view of the tandem sub as shown in FIG. 1;

FIG. 9 is a front view of the tandem sub as shown in FIG. 1;

FIG. 10 is a rear view of the tandem sub as shown in FIG. 1;

FIG. 11 is a top up, perspective view of a tandem sub, showing an alternative embodiment of my new design;

FIG. 12 is a top down, perspective view of the tandem sub as shown in FIG. 11;

FIG. 13 is a bottom up, perspective view of the tandem sub as shown in FIG. 11;

FIG. 14 is a bottom down, perspective view of the tandem sub as shown in FIG. 11;

FIG. 15 is a bottom elevated view of the tandem sub as shown in FIG. 11;

FIG. 16 is a top elevated view of the tandem sub as shown in FIG. 11;

FIG. 17 is a left side elevated view of the tandem sub as shown in FIG. 11;

FIG. 18 is a right side elevated view of the tandem sub as shown in FIG. 11;

FIG. 19 is a front view of the tandem sub as shown in FIG. 11;

FIG. 20 is a rear view of the tandem sub as shown in FIG. 11;

FIG. 21 is a top up, perspective view of a tandem sub, showing an alternative embodiment of my new design;

FIG. 22 is a top down, perspective view of the tandem sub as shown in FIG. 21;

FIG. 23 is a bottom up, perspective view of the tandem sub as shown in FIG. 21;

FIG. 24 is a bottom down, perspective view of the tandem sub as shown in FIG. 21;

FIG. 25 is a bottom elevated view of the tandem sub as shown in FIG. 21;

FIG. 26 is a top elevated view of the tandem sub as shown in FIG. 21;

FIG. 27 is a left side elevated view of the tandem sub as shown in FIG. 21;

FIG. 28 is a right side elevated view of the tandem sub as shown in FIG. 21;

FIG. 29 is a front view of the tandem sub as shown in FIG. 21; and,

FIG. 30 is a rear view of the tandem sub as shown in FIG. 21.

The broken lines consisting of dashes show an environment that forms no part of the claimed design. The broken lines consisting of a double-dot/dash pattern show a boundary of the claimed design.

Eitschberger, Christian

Patent Priority Assignee Title
11608720, Jul 18 2013 DynaEnergetics Europe GmbH Perforating gun system with electrical connection assemblies
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Mar 31 2020DynaEnergetics Europe GmbH(assignment on the face of the patent)
Mar 31 2020EITSCHBERGER, CHRISTIANDynaEnergetics Europe GmbHASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0522760910 pdf
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