IP Library › Assignment 013704/0565
Patent Assignment
Reel/Frame 013704/0565

Assignment of Assignor's Interest

Recorded: 2003-01-03 Pages: 2
Assignors
DURSTON, PETER J.
Executed: 2001-07-24
ATTWATER, DAVID J.
Executed: 2001-07-24
Assignee
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
81 NEWGATE STREET, LONDON, ENGLAND, 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 Jun 21, 2011
From: BRITISH TELECOMMUNICATIONS PLC
To: RPX CORPORATION
Reel/Frame 026483/0280 →
Assignment of Assignor's Interest Jul 8, 2011
From: DURSTON, PETER JOHN; ATTWATER, DAVID JOHN
To: BRITISH TELECOMMUNICATIONS PLC
Reel/Frame 026563/0075 →