Patent Assignment
Reel/Frame 023680/0516
Assignment of Assignor's Interest
Recorded: 2009-12-18
Pages: 6
Assignee
RESEARCH IN MOTION LIMITED
295 PHILLIP STREET, WATERLOO, N2L 3W8, CANADA
Covered Property
(1)
Methods and Apparatus to Avoid Mobile Station Transmission of Duplicate Event-Based and Polled Acknowledgments
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Dec 18, 2009
From: HOLE, DAVID PHILIP
To: RESEARCH IN MOTION UK LIMITED
Reel/Frame 023680/0453 →
Assignment of Assignor's Interest
Mar 2, 2012
From: RESEARCH IN MOTION UK LIMITED
To: RESEARCH IN MOTION LIMITED
Reel/Frame 027799/0395 →
Change of Name
Jul 25, 2014
From: RESEARCH IN MOTION LIMITED
To: BLACKBERRY LIMITED
Reel/Frame 033418/0901 →