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Patent Assignment Abstract of Title
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Total Assignments: 3
Patent #:
Issue Dt:
08/12/1986
Application #:
06578152
Filing Dt:
02/08/1984
Inventors:
JOHANNES J. VERBOOM, ROGER R. BRACHT
Title:
WRITE PROTECTION AND DATA DETECTION USING DIFFERENTIAL DETECTOR
Assignment: 1
Reel/Frame:
004311/0333Recorded: 02/08/1984Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
Exec Dt:
01/26/1984
Exec Dt:
01/26/1984
Assignee:
8100 34TH AVE., SO.
MINNEAPOLIS, MINNESOTA 55440
Correspondent:
EDWARD P. HELLER, III
C/O CONTROL DATA CORP.
P. O. BOX O,
MINNEAPOLIS, MN 55044
Assignment: 2
Reel/Frame:
004588/0640Recorded: 08/08/1986Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
08/03/1986
Assignees:
4425 ARROWS WEST DRIVE, A NEW YORK PARTNERSHIP, PARTNERS CONTROL DATA STORAGE DEVICES, INC., AND PHILIPS DATA STORAGE CORP., BOTH CORP.
COLORADO SPRINGS, COLORADO 80907
COLORADO
Correspondent:
EDWARD P. HELLER, III
C/O CONTROL DATA CORP.
P. O. BOX O,
MINNEAPOLIS, MN 55044
Assignment: 3
Reel/Frame:
005739/0720Recorded: 06/20/1991Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
06/13/1991
Assignee:
NEW YORK, NEW YORK
Correspondent:
NORTH AMERICAN PHILIPS CORPORATION
580 WHITE PLAINS ROAD
TARRYTOWN, NY 10591
ATTN: DAVID R. TREACY

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