Patent Assignment
Reel/Frame 004895/0908
Assignment of Assignors Interest.
Recorded: 1988-06-17
Pages: 2
Assignor
WYATT, MARK L.
Executed: 1988-04-22
Covered Property
(1)
Drillable Bridge Plug
Patent:
4,784,226 →
Application:
07/053,828 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger
Nov 18, 1993
From: ARROW OIL TOOLS, INC.
To: LINDSEY COMPLETION SYSTEMS, INC.
Reel/Frame 006777/0360 →
Change of Name
Dec 3, 1993
From: LINDSEY COMPLETION SYSTEMS, INC.
To: MASX ENERGY SERVICES GROUP, INC.
Reel/Frame 006783/0444 →
Change of Name
Nov 29, 1996
From: TOTAL ENERGY SERVICES COMPANY
To: ENTERRA PETROLEUM EQUIPMENT GROUP, INC.
Reel/Frame 008239/0795 →