IP Library › Assignment 003898/0218
Patent Assignment
Reel/Frame 003898/0218

Assignment of Assignors Interest.

Recorded: 1981-06-24 Pages: 2
Assignors
TRUE, MARTIN E.
Executed: 1981-06-09
SULLIVAN, CLARENCE W.
Executed: 1981-06-12
Assignee
WEATHERFORD/LAMB, INC.
A CORP. OF TEX., HOUSTON, TEXAS
Covered Property (1)
Power Spinner for Rotating a Kelly Joint
Patent: 4,630,688 →
Application: 06/278,438 →
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest Sep 7, 1993
From: WEATHERFORD/LAMB, INC.
To: TEXAS COMMERCE BANK NATIONAL ASSOCIATION
Reel/Frame 006683/0516 →
Release Apr 26, 1994
From: TEXAS COMMERCE BANK NATIONAL ASSOCIATION
To: WEATHERFORD/LAMB, INC.
Reel/Frame 006968/0274 →