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Patent Assignment Details

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Reel/Frame:	005763/0536			Pages:	19
		Recorded:	06/24/1991
Conveyance:	SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).

Total properties: 17

Patent #:	3829268	Issue Dt:		Application #:	05341492	Filing Dt:
Title:

Patent #:	3948354	Issue Dt:		Application #:	05507064	Filing Dt:
Title:

Patent #:	4118165	Issue Dt:	10/03/1978	Application #:	05753526	Filing Dt:	12/22/1976
Title:	APPARATUS AND METHOD FOR SIMULTANEOUSLY MAKING A PLURALITY OF CONCRETE PIPES

Patent #:	4131408	Issue Dt:		Application #:	05821540	Filing Dt:
Title:

Patent #:	4253814	Issue Dt:	03/03/1981	Application #:	06007296	Filing Dt:	01/29/1979
Title:	PACKERHEAD AND CORE CONTROL SYSTEM

Patent #:	4340553	Issue Dt:	07/20/1982	Application #:	06188301	Filing Dt:	09/18/1980
Title:	MACHINE AND METHOD FOR MAKING CONCRETE PRODUCT

Patent #:	4407648	Issue Dt:	10/04/1983	Application #:	06366870	Filing Dt:	04/09/1982
Title:	COUNTER ROTATING PACKERHEAD ASSEMBLY

Patent #:	4540539	Issue Dt:	09/10/1985	Application #:	06451666	Filing Dt:	12/21/1982
Title:	METHOD AND APPARATUS FOR PRODUCTION OF CONCRETE PIPE BY THE PACKERHEAD METHOD

Patent #:	4639342	Issue Dt:	01/27/1987	Application #:	06823160	Filing Dt:	01/27/1986
Title:	COMBINED CONCRETE FEED AND PACKERHEAD LIFT CONTROL

Patent #:	4690631	Issue Dt:	09/01/1987	Application #:	06837097	Filing Dt:	03/06/1986
Title:	PACKERHEAD WITH ELASTIC ROLLERS

Patent #:	4861252	Issue Dt:	08/29/1989	Application #:	07253365	Filing Dt:	09/29/1988
Title:	VIBRATOR TYPE CONCRETE PIPE MAKING MACHINES HAVING COMBINED LUBRICATION AND COOLING SYSTEM

Patent #:	4957424	Issue Dt:	09/18/1990	Application #:	07322175	Filing Dt:	03/13/1989
Title:	CONCRETE PIPE MAKING MACHINE

Patent #:	5147196	Issue Dt:	09/15/1992	Application #:	07435192	Filing Dt:	11/13/1989
Title:	MACHINE FOR MAKING CONCRETE PIPES

Patent #:	3922133	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	3938685	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	3945787	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	4023771	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Assignor

Exec Dt:

05/15/1991

Assignee

6TH AND PIERCE STREETS

SIOUX CITY, IOWA 51101

Correspondence name and address
	ZARLEY, MCKEE, THOMTE, ET AL
	801 GRAND AVENUE
	SUITE 3200
	DES MOINES, IA 50309

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