Patent
   D935574
Priority
Feb 11 2019
Filed
May 03 2021
Issued
Nov 09 2021
Expiry
Nov 09 2036
Assg.orig
Entity
unknown
6
168
n/a
We claim the ornamental design of an inner retention ring, as shown and described.

FIG. 1 is a front, top perspective view of an inner retention ring showing our new design;

FIG. 2 is a front, bottom perspective view of the inner retention ring of FIG. 1;

FIG. 3 is a front elevated view of the inner retention ring of FIG. 1;

FIG. 4 is a rear elevated view of the inner retention ring of FIG. 1;

FIG. 5 is a left -side elevated view of the inner retention ring of FIG. 1;

FIG. 6 is a right-side elevatedview of the inner retention ring of FIG. 1;

FIG. 7 is a top plan view of the inner retention ring of FIG. 1;

FIG. 8 is a bottom plan view of the inner retention ring of FIG. 1; and,

FIG. 9 is a cross-section view of the inner retention ring of FIG. 1, taken along line 9-9 of FIG. 7.

The broken lines consisting of dashes show an environment that forms no part of the claimed design.

Scharf, Thilo, Eitschberger, Christian, Burmeister, Gernot Uwe

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Oct 19 2020EITSCHBERGER, CHRISTIANDynaEnergetics Europe GmbHASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0561140592 pdf
Oct 19 2020SCHARF, THILODynaEnergetics Europe GmbHASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0561140592 pdf
Oct 19 2020BURMEISTER, GERNOT UWEDYNAENERGETICS US, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0561210524 pdf
Oct 21 2020DYNAENERGETICS US, INC DynaEnergetics Europe GmbHASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0561140563 pdf
May 03 2021DynaEnergetics Europe GmbH(assignment on the face of the patent)
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