Patent
   D741550
Priority
May 02 2014
Filed
May 02 2014
Issued
Oct 20 2015
Expiry
Oct 20 2029
Assg.orig
Entity
unknown
15
88
n/a
The ornamental design for an ear muff attachment arm, as shown and described.

FIG. 1 is a perspective view of an ear muff attachment arm showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof, the right side being a mirror image thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

Broken lines form no part of the claimed design, and any shading is provided to illustrate contour only and is not an indication of texture, gloss, etc.

The shaded surface areas up to the broken lines define the boundary of the claim.

Nersing, Lovisa, Edwardsson, Henrik, Jonsson, Emil

Patent Priority Assignee Title
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D821354, Oct 04 2016 Yamaha Corporation Headphone
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D876017, May 10 2017 3M Innovative Properties Company Attachment arm
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D981365, Jan 23 2020 Audio headphones
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Executed onAssignorAssigneeConveyanceFrameReelDoc
May 02 20143M Innovative Properties Company(assignment on the face of the patent)
May 06 2014EDWARDSSON, HENRIK3M Innovative Properties CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0328280566 pdf
May 06 2014JONSSON, EMIL3M Innovative Properties CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0328280566 pdf
May 06 2014NERSING, LOVISA3M Innovative Properties CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0328280566 pdf
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