IP Library › Assignment 021238/0034
Patent Assignment
Reel/Frame 021238/0034

Assignment of Assignor's Interest

Recorded: 2008-07-15 Pages: 6
Assignors
SIGMUND, WILLIAM JOSEPH
Executed: 2008-07-11
ZUBAS, MICHAEL ROBERT
Executed: 2008-07-11
RAINER, BRIAN KEITH
Executed: 2008-07-11
Assignee
AT&T MOBILITY II LLC
5565 GLENRIDGE CONNECTOR, ATLANTA, GEORGIA, 30342
Covered Property (1)
Toggling Voicemail Class of Service
Patent: 8,737,580 →
Application: 12/160,931 →
Publication: US 2010/0189229
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jan 26, 2017
From: AT&T MOBILITY II LLC
To: NUANCE COMMUNICATIONS, INC.
Reel/Frame 041494/0590 →