Patent Assignment
Reel/Frame 004524/0455
Change of Name Effective Date June 28, 1984
Recorded: 1986-03-24
Pages: 2
Assignor
CONTINENTAL EMSCO COMPANY
Executed: 1984-06-21
Assignee
Covered Property
(1)
Ball Sealer
Patent:
4,505,334 →
Application:
06/529,951 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Sep 6, 1983
From: DONER, AUGUST K.; BRADY, LEWIS L.; ALVARADO, JESSE T.
To: OIL STATES INDUSTRIES, INC., A TX. CORP.
Reel/Frame 004184/0049 →
Assignment of Assignors Interest.
Jul 16, 1984
From: OIL STATES INDUSTRIES, INC.
To: CONTINENTAL EMSCO COMPANY
Reel/Frame 004283/0928 →
Merger and Change of Name. Effective October 1, 1993 in Delaware.
May 16, 1994
From: LTV ENERGY PRODUCTS COMPANY OR CONTINENTAL EMSCO COMPANY
To: CONTINENTAL EMSCO COMPANY
Reel/Frame 006987/0867 →