IP Library › Granted Patent US 728,507
Granted Patent S1
US 728,507 · App. 29/470,420 · Granted May 5, 2015

Duplex speakerphone

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Quick Facts
Patent No.
US 728,507
App. No.
29/470,420
Granted
May 5, 2015
Kind
S1
Claims (1)

The ornamental design for a duplex speakerphone, as shown and described.

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE THE INCORRECTLY RECORDED ASSIGNMENT DOCUMENT PREVIOUSLY RECORDED AT REEL: 055878 FRAME: 0039. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Jun 17, 2021
From: SENNHEISER COMMUNICATIONS A/S
To: EPOS GROUP A/S
Reel/Frame 056619/0836 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 9, 2021
From: SENNHEISER COMMUNICATIONS A/S
To: EPOS GROUP A/S
Reel/Frame 055878/0039 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 17, 2013
From: BRANDIS, MICHAEL
To: SENNHEISER COMMUNICATIONS A/S
Reel/Frame 031802/0646 →