IP Library › Granted Patent US 539,274
Granted Patent S1
US 539,274 · App. 29/227,612 · Granted Mar 27, 2007

Telephone conferencing device

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Quick Facts
Patent No.
US 539,274
App. No.
29/227,612
Granted
Mar 27, 2007
Kind
S1
Claims (1)

The ornamental design for a telephone conferencing device, as shown and described.

Assignments (2)
CHANGE OF NAME Recorded Mar 13, 2016
From: CLEARONE COMMUNICATIONS, INC.
To: CLEARONE INC.
Reel/Frame 038075/0021 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 13, 2005
From: BOURNE, CHRISTOPHER; WRIGHT, JAMES
To: CLEARONE COMMUNICATIONS, INC.
Reel/Frame 016486/0438 →