Patent Assignment
Reel/Frame 005094/0612
Assignment of Assignors Interest.
Recorded: 1989-03-23
Pages: 5
Assignor
CARBIDE BLAST JOINTS, INC.
Executed: 1986-11-05
Assignee
Covered Properties
(4)
Blast Joint and Method
Patent:
4,141,386 →
Application:
05/600,616 →
Compensated Blast Joint for Oil Well Production Tubing
Patent:
4,211,440 →
Application:
05/756,251 →
Blast Joint for Subterranean Wells
Patent:
4,349,050 →
Application:
06/190,089 →
Increased Tensile Strength Variable Diameter Protective Joint
Patent:
4,613,165 →
Application:
06/732,703 →
Related Assignments
(7)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Oct 24, 1980
From: BERGSTROM ARTHUR E.; NELSON RICHARD H.; MALY GEORGE P.
To: CARBIDE BLAST JOINTS, INC. A CORP. OF TX.
Reel/Frame 003807/0475 →
Assignment of Assignors Interest.
May 10, 1985
From: KUHNE, KARL F.
To: CARBIDE BLAST JOINTS, INC., A CORP OF TX
Reel/Frame 004419/0364 →
Change of Name Effective: May 2, 1988
Sep 23, 1988
From: CARBIDE BLAST JOINTS, INC.
To: VERMONT AMERICAN OF TEXAS, INC.
Reel/Frame 004996/0093 →
Assignment of Assignors Interest.
Sep 23, 1988
From: CARBIDE BLAST JOINTS, INC.
To: VERMONT AMERICAN OF TEXAS, INC.
Reel/Frame 004996/0100 →
Assignment of Assignors Interest.
Feb 24, 1989
From: CARBIDE BLAST JOINTS, INC.
To: VERMONT AMERICAN CORPORATION
Reel/Frame 005021/0649 →
Assignment of Assignors Interest.
Mar 23, 1989
From: PIPER, FRANK
To: PENN'S WOODS PRODUCTS, INC.
Reel/Frame 005026/0812 →
Change of Name May 2, 1988
Mar 23, 1989
From: VERMONT AMERICAN OF TEXAS, INC.,
To: CARBIDE BLAST JOINTS, INC.
Reel/Frame 005094/0617 →