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Patent Assignment Abstract of Title
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Total Assignments: 3
Patent #:
Issue Dt:
03/16/1993
Application #:
07709293
Filing Dt:
06/03/1991
Inventors:
JOHN L. HILL III, EUGENE L. FOSTER, WILLIAM J. HUTZEL
Title:
METHOD AND APPARATUS FOR DETERMINING PATH ORIENTATION OF A PASSAGEWAY
Assignment: 1
Reel/Frame:
005731/0186Recorded: 06/03/1991Pages: 6
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
Exec Dt:
05/30/1991
Exec Dt:
05/30/1991
Exec Dt:
05/30/1991
Assignee:
A CORPORATION OF VA
8560 CINDERBED RD., STE. 1300, NEWINGTON
VIRGINIA 22122
Correspondent:
DICKSTEIN, SHAPIRO & MORIN
2101 L ST., NW, STE. 400
WASHINGTON, DC 20037
Assignment: 2
Reel/Frame:
018711/0727Recorded: 01/05/2007Pages: 5
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
08/15/2005
Assignee:
8350 ALBAN RD.
SUITE 700
SPRINGFIELD, VIRGINIA 22150
Correspondent:
ELIZABETH PARSONS
1825 EYE STREET, NW
WASHINGTON, DC 20006
Assignment: 3
Reel/Frame:
027515/0784Recorded: 01/11/2012Pages: 9
Conveyance:
MERGER (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
12/16/2011
Assignee:
870 WINTER STREET
WALTHAM, MASSACHUSETTS 02451-1449
Correspondent:
KATE EMERSON C/O RAYTHEON COMPANY
870 WINTER STREET
WALTHAM, MA 02451

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