Patent Assignment
Reel/Frame 005551/0180
Assignment of Assignors Interest.
Recorded: 1990-12-21
Pages: 2
Assignor
BLANCHARD, MICHEL
Executed: 1990-12-12
Assignee
GAZ DE FRANCE
23, RUE PHILIBERT-DELORME, 75017 PARIS, FRANCE
Covered Property
(1)
Method and Apparatus for Determining Interactions Due to Direct Currents on Adjacent Buried Metal Structures
Patent:
5,144,253 →
Application:
07/631,319 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Corporate Form
Nov 12, 2012
From: GAZ DE FRANCE SERVICE NATIONAL
To: GAZ DE FRANCE SOCIETE ANONYME
Reel/Frame 029277/0406 →
Change of Name
Nov 12, 2012
From: GAZ DE FRANCE
To: GDF SUEZ
Reel/Frame 029277/0438 →
Change of Address
Nov 12, 2012
From: GDF SUEZ
To: GDF SUEZ
Reel/Frame 029277/0445 →