IP Library › Assignment 005853/0137
Patent Assignment
Reel/Frame 005853/0137

Assignment of Assignors Interest.

Recorded: 1991-09-18 Pages: 4
Assignor
Assignee
SEQUA ENGINEERED SERVICES, INC., A WEST VIRGINIA CORP.
202 INDUSTRIAL BOULEVARD, HOUMA, LOUISIANA, 70361
Covered Properties (5)
Magnetic Casing Depth Marker
Patent: 4,244,424 →
Application: 06/024,523 →
Wax Control in Oil Wells Using a Thermal Syphon System
Patent: 4,328,865 →
Application: 06/177,398 →
Ball-Type Check Valve Assembly
Patent: 4,655,247 →
Application: 06/820,544 →
Stage Cementing Tool
Patent: 4,674,569 →
Application: 06/845,613 →
Ball-Type Check Valve
Patent: 4,945,947 →
Application: 07/357,121 →
Related Assignments (8)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest. Aug 29, 1980
From: HALL EDWARD N.
To: CHROMALLOY AMERICAN CORPORATION, A CORP. OF DE
Reel/Frame 003794/0063 →
Assignment of Assignors Interest. Feb 12, 1986
From: WESTRA, LUBBERT; LIRETTE, BRENT J.
To: CHROMALLOY AMERICAN CORPORATION, A CORP OF DELAWARE
Reel/Frame 004515/0102 →
Assignment of Assignors Interest. Apr 14, 1986
From: REVILS, ERNEST A.; ARBONEAUX, EMMET J. III; LIRETTE, BRENT J.
To: CHROMALLOY AMERICAN CORPORATION, A CORP. OF DE.
Reel/Frame 004534/0244 →
Assignment of Assignors Interest. May 26, 1989
From: WESTRA, LUBBERT; LIRETTE, BRENT
To: CHROMALLOY AMERICAN CORPORATION, A CORP. OF DE.
Reel/Frame 005086/0380 →
Assignment of Assignor's Interest Aug 30, 1993
From: SEQUA ENGINEERED SERVICES, INC.
To: WEATHERFORD-PETCO, INC.
Reel/Frame 006674/0275 →
Security Interest Sep 7, 1993
From: WEATHERFORD U.S., INC.
To: TEXAS COMMERCE BANK NATIONAL ASSOICATION
Reel/Frame 006677/0420 →
Release from Security Agreement Apr 26, 1994
From: TEXAS COMMERCE BANK NATIONAL ASSOCIATION
To: WEATHERFORD U.S., INC.
Reel/Frame 006968/0187 →
Assignment of Assignor's Interest May 17, 2005
From: WEATHERFORD U.S., L.P.
To: WEATHERFORD/LAMB, INC.
Reel/Frame 016016/0867 →