IP Library › Assignment 026563/0075
Patent Assignment
Reel/Frame 026563/0075

Assignment of Assignor's Interest

Recorded: 2011-07-08 Pages: 5
Assignors
DURSTON, PETER JOHN
Executed: 2011-05-25
ATTWATER, DAVID JOHN
Executed: 2011-06-13
Assignee
BRITISH TELECOMMUNICATIONS PLC
81 NEWGATE STREET, LONDON, EC1A 7AJ, UNITED KINGDOM
Covered Property (1)
Interactive Dialogues
Patent: 7,143,040 →
Application: 10/312,984 →
Publication: US 2003/0130849
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jan 3, 2003
From: DURSTON, PETER J.; ATTWATER, DAVID J.
To: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
Reel/Frame 013704/0565 →
Assignment of Assignor's Interest Jun 21, 2011
From: BRITISH TELECOMMUNICATIONS PLC
To: RPX CORPORATION
Reel/Frame 026483/0280 →