Patent Assignment
Reel/Frame 005252/0145
Assignment of Assignors Interest.
Recorded: 1989-08-10
Pages: 4
Assignor
ENVIROTECH CORPORATION
Executed: 1989-07-31
Assignee
TAMROCK WORLD CORPORATION N.V., C/O PIERSON, HELDRING & PIERSON
6 JOHN B. GORSIRAWEG, A CORP. OF THE NETHERLANDS ANTILLES, CURACAO, NETHERLANDS ANTILLES
Covered Properties
(6)
Vehicle with Dual Drill Booms and Temporary Roof Support
Patent:
4,284,368 →
Application:
06/004,429 →
Quick-Coupling Locking Mechanism
Patent:
4,265,587 →
Application:
06/060,267 →
Suspension for Pivotally Mounting a Rigid Axle Assembly
Patent:
4,447,072 →
Application:
06/330,545 →
Vehicle Oscillation Lock
Patent:
4,465,293 →
Application:
06/437,497 →
Coupling Mechanism
Patent:
4,439,938 →
Application:
06/549,213 →
Turret for Roof Bolting Apparatus
Patent:
4,588,037 →
Application:
06/680,617 →
Related Assignments
(7)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Dec 14, 1981
From: BRADLEY, KIRK D.; KOSKI, ROBERT R.
To: ENVIROTECH CORPORATION, A CORP. OF DE.
Reel/Frame 003968/0663 →
Assignment of Assignors Interest.
Jan 5, 1982
From: MC NAB, WILLIAM S.; PHIFER, JERRY A.
To: ENVIROTECH CORPORATION
Reel/Frame 004072/0998 →
Assignment of Assignors Interest.
Jan 18, 1982
From: THOMAS H CLARK EXECUTOR OF THE ESTATE OF JAMES CLARK
To: ENVIROTECH CORPORATION A CORP OF DE
Reel/Frame 003960/0073 →
Assignment of Assignors Interest.
Feb 19, 1985
From: COMBET, MICHEL
To: ENVIROTECH CORPORATION
Reel/Frame 004363/0932 →
Assignment of Assignors Interest.
May 30, 1989
From: FMC CORPORATION
To: ENVIROTECH CORPORATION, A CORP. OF DE
Reel/Frame 005221/0027 →
Assignment of Assignor's Interest
Dec 27, 1993
From: TAMROCK WORLD CORPORATION, N.V.
To: EIMCO COAL MACHINERY, INC.
Reel/Frame 006817/0690 →
Assignment of Assignor's Interest
Jul 13, 1999
From: EIMCO COAL MACHINERY INC.
To: EIMCO LLC
Reel/Frame 010086/0200 →