Patent Assignment
Reel/Frame 003875/0323
Assignment of Assignors Interest.
Recorded: 1981-02-27
Pages: 1
Assignor
GREENE GEORGE J.
Executed: 1981-02-20
Assignee
WEATHERFORD/STONEBOR, INC., A CORP. OF TEX.
HOUSTON, TEXAS
Covered Property
(1)
Blast Joint and Protection Element Therefor
Patent:
4,381,821 →
Application:
06/238,988 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest
Aug 1, 1985
From: WEATHERFORD U.S. , INC.
To: FIRST CITY NATIONAL BANK OF HOUSTON, 1001 MAIN STREET, HOUSTON, TEXAS 77002, A NATIONAL BANKING ASSOCIATION OF TEXAS
Reel/Frame 004442/0268 →
Released by Secured Party
May 10, 1990
From: FIRST CITY, TEXAS-HOUSTON, N.A. (SUCESSOR TO FIRST CITY NATIONAL BANK OF HOUSTON N.A.)
To: WEATHERFORD U.S., INC.
Reel/Frame 005296/0388 →