Patent Assignment
Reel/Frame 004257/0399
Assignment of Assignors Interest.
Recorded: 1983-10-25
Pages: 2
Assignor
ALDER, ROBERT L.
Executed: 1982-11-08
Assignee
Covered Property
(1)
Automatic Drilling Process and Apparatus
Patent:
4,491,186 →
Application:
06/442,162 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Mar 9, 1993
From: SMITH INTERNATIONAL, INC.
To: HCS LEASING CORPORATION
Reel/Frame 006452/0317 →
Assignment of Assignor's Interest
Jun 1, 1993
From: HCS LEASING CORPORATION, A WHOLLY OWNED SUBSIDIARY OF SMITH INTERNATIONAL, INC.
To: HALLIBURTON COMPANY
Reel/Frame 006544/0193 →