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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
Issue Dt:
03/13/1990
Application #:
07250954
Filing Dt:
09/29/1988
Inventors:
GERALD A. STANGL, DOUGLAS W. LEE, DIRK A. WILSON
Title:
PERCUSSIVE MOLE BORING DEVICE WITH ELECTRONIC TRANSMITTER
Assignment: 1
Reel/Frame:
004978/0721Recorded: 11/28/1988Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
Exec Dt:
11/18/1988
Exec Dt:
11/18/1988
Exec Dt:
11/18/1988
Assignee:
CHICAGO, ILLINOIS
Correspondent:
BANNER, BIRCH, MCKIE & BECKETT
ONE THOMAS CIRCLE, N.W.
WASHINGTON, DC 20005
Assignment: 2
Reel/Frame:
017448/0282Recorded: 01/17/2006Pages: 10
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
01/05/2006
Assignee:
1700 SOUTH MOUNT PROSPECT ROAD
DE PLAINES, ILLINOIS 60018
Correspondent:
MARK E. FEJER
GAS TECHNOLOGY INSTITUTE
1700 SOUTH MOUNT PROSPECT ROAD
DES PLAINES IL 60018

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