IP Library › Granted Patent US 704,676
Granted Patent S1
US 704,676 · App. 29/441,581 · Granted May 13, 2014

Headphone assembly

Inventor: Michael Craig Krisztal (Los Angeles, CA)
Assignee: The Ketchum Group, Inc.
H04S1/005
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Quick Facts
Patent No.
US 704,676
App. No.
29/441,581
Granted
May 13, 2014
Kind
S1
Claims (1)

I claim the ornamental design for a headphone assembly, as shown and described.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 7, 2025
From: WEINBERG, JOEL B.
To: OUTDOOR TECHNOLOGY, LLC
Reel/Frame 073029/0306 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 15, 2020
From: THE KETCHUM GROUP, INC.
To: PROTEMPO US LIMITED
Reel/Frame 052675/0236 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 30, 2013
From: KRISZTAL, MICHAEL CRAIG
To: THE KETCHUM GROUP, INC., DBA, OUTDOOR TECHNOLOGY
Reel/Frame 030516/0368 →