Patent Assignment
Reel/Frame 008931/0951
Assignment of Assignor's Interest
Recorded: 1998-01-29
Pages: 2
Assignors
DURUP, JEAN-GERARD
Executed: 1997-09-09
BORIS, GUY
Executed: 1997-09-09
CHARNAVEL, YVON
Executed: 1997-09-09
Assignee
GAZ DE FRANCE (G.D.F.) SERVICE NATIONAL
23, RUE PHILIBERT DELONME, PARIS, 75017, FRANCE
Covered Property
(1)
Process for Excavating a Cavity in a Thin Salt Layer
Patent:
5,957,539 →
Application:
08/895,983 →
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 →