Patent Assignment
Reel/Frame 004184/0049
Assignment of Assignors Interest.
Recorded: 1983-09-06
Pages: 1
Assignors
DONER, AUGUST K.
Executed: 1983-08-31
BRADY, LEWIS L.
Executed: 1983-08-31
ALVARADO, JESSE T.
Executed: 1983-08-31
Assignee
OIL STATES INDUSTRIES, INC., A TX. CORP.
8000 S. COOPER, ARLINGTON, TEXAS, 76011
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.
Jul 16, 1984
From: OIL STATES INDUSTRIES, INC.
To: CONTINENTAL EMSCO COMPANY
Reel/Frame 004283/0928 →
Change of Name Effective Date June 28, 1984
Mar 24, 1986
From: CONTINENTAL EMSCO COMPANY
To: LTV ENERGY PRODUCTS COMPANY
Reel/Frame 004524/0455 →
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 →