Patent Assignment
Reel/Frame 004170/0998
Assignment of Assignors Interest.
Recorded: 1983-08-19
Pages: 2
Assignor
MAGNETIC PERIPHERALS INC.
Executed: 1983-04-08
Assignee
Covered Property
(1)
Partial Beam Focus Sensing in an Optical Recording System
Patent:
4,441,175 →
Application:
06/342,459 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Jan 25, 1982
From: SHUMAN, CURTIS A.
To: MAGNETIC PERIPHERALS INC., C/O CONTROL DATA CORPORATION
Reel/Frame 003966/0188 →
Change of Name Effective June 14,1983
Aug 19, 1983
From: NEW MPI, INC.
To: MAGNETIC PERIPHERALS INC.
Reel/Frame 004186/0823 →
Assignment of Assignors Interest.
Aug 2, 1989
From: MAGNETIC PERIPHERALS INC.
To: CONTROL DATA CORPORATION
Reel/Frame 005208/0318 →
Assignment of Assignors Interest.
Apr 3, 1991
From: CONTROL DATA CORPORATION
To: NORTH AMERICAN PHILIPS CORPORATION, A CORP. OF DE
Reel/Frame 005652/0951 →