Patent Assignment
Reel/Frame 015918/0097
Assignment of Assignor's Interest
Recorded: 2005-04-18
Pages: 4
Assignor
WEATHERFORD U.S., L.P.
Executed: 2005-04-18
Assignee
WEATHERFORD/LAMB, INC.
515 POST OAK BLVD. SUITE 600, HOUSTON, TEXAS, 77027
Covered Properties
(2)
Retractable Slip Assembly
Patent:
4,813,486 →
Application:
07/100,303 →
Well Packing Tool
Patent:
5,046,557 →
Application:
07/516,645 →
Related Assignments
(6)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Jun 27, 1988
From: WYATT, MARK L.; TUCKER, ANDREW J.
To: ARROW OIL TOOLS, INC., A DE. CORP.
Reel/Frame 004903/0217 →
Assignment of Assignors Interest.
Jul 8, 1991
From: MANDERSCHEID, PHILLIP H.
To: MASX ENERGY SERVICES GROUP, INC. A DELAWARE CORPORATIOIN
Reel/Frame 005756/0178 →
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 →
Assignment of Assignor's Interest
Jan 23, 1997
From: ENTERRA PETROLEUM EQUIPMENT GROUP, INC.
To: EVI ARROW, INC.
Reel/Frame 008321/0001 →