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Patent Assignment Details

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Reel/Frame:	009089/0895			Pages:	5
		Recorded:	04/08/1998
Conveyance:	TERMINATION OF PATENT ASSIGNMENT FOR SECURITY DATED AS OF APRIL 8, 1998, AND ATTACHED HERTO AS EXHIBIT 1.

Total properties: 20

Patent #:	4183736	Issue Dt:	01/15/1980	Application #:	05710383	Filing Dt:	08/02/1976
Title:	ELECTROSTATIC PRECIPITATION

Patent #:	4097564	Issue Dt:		Application #:	05739718	Filing Dt:
Title:

Patent #:	4099859	Issue Dt:		Application #:	05754892	Filing Dt:
Title:

Patent #:	4122346	Issue Dt:		Application #:	05780492	Filing Dt:
Title:

Patent #:	4133649	Issue Dt:		Application #:	05821084	Filing Dt:
Title:

Patent #:	4180770	Issue Dt:		Application #:	05882323	Filing Dt:
Title:

Patent #:	4216669	Issue Dt:		Application #:	05949017	Filing Dt:
Title:

Patent #:	4198590	Issue Dt:	04/15/1980	Application #:	05961403	Filing Dt:	11/16/1978
Title:	HIGH CURRENT TRIGGERED SPARK GAP

Patent #:	4251853	Issue Dt:	02/17/1981	Application #:	06021882	Filing Dt:	03/19/1979
Title:	ANNUNCIATOR OF MODULAR CONSTRUCTION

Patent #:	4248546	Issue Dt:	02/03/1981	Application #:	06052397	Filing Dt:	06/27/1979
Title:	MANHOLE CEILING TENT

Patent #:	4230947	Issue Dt:	10/28/1980	Application #:	06054002	Filing Dt:	07/02/1979
Title:	APPARATUS FOR TREATING FLOWABLE MATERIAL

Patent #:	4237198	Issue Dt:	12/02/1980	Application #:	06072879	Filing Dt:	09/06/1979
Title:	ELECTRICAL DEVICE WITH BI-LEVEL BATTERY STATE-OF-CHARGE INDICATOR

Patent #:	D271196	Issue Dt:	11/01/1983	Application #:	06072960	Filing Dt:	09/06/1979
Title:	ELECTRICAL CONNECTOR

Patent #:	4328455	Issue Dt:	05/04/1982	Application #:	06125141	Filing Dt:	02/27/1980
Title:	CAPACITOR STORAGE CIRCUIY

Patent #:	4248942	Issue Dt:	02/03/1981	Application #:	06144722	Filing Dt:	04/28/1980
Title:	ELECTRICAL DEVICE WITH BI-LEVEL BATTERY STATE-OF-CHARGE INDICATOR

Patent #:	4485428	Issue Dt:	11/27/1984	Application #:	06376667	Filing Dt:	05/10/1982
Title:	HIGH VOLTAGE PULSE GENERATOR

Patent #:	4488885	Issue Dt:	12/18/1984	Application #:	06438327	Filing Dt:	11/01/1982
Title:	ELECTROSTATIC CHARGING APPARATUS

Patent #:	4554793	Issue Dt:	11/26/1985	Application #:	06502475	Filing Dt:	06/09/1983
Title:	CONTROLLED POWER CONVERTER FOR THERMOELECTRIC HEAT PUMP DRIVE

Patent #:	4627844	Issue Dt:	12/09/1986	Application #:	06792904	Filing Dt:	10/30/1985
Title:	TRI-LAYER TUBING

Patent #:	0381462	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Assignor

Exec Dt:

04/08/1998

Assignee

SUITE 680

540 EDGEWATER PLACE

WAKEFIELD, MASSACHUSETTS 01880

Correspondence name and address
	BINGHAM DANA LLP
	JAMES P. CARRIGAN, ESQ.
	150 FEDERAL STREET
	BOSTON, MA 02110

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