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Patent Assignment Details

NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Reel/Frame:	014885/0236			Pages:	6
		Recorded:	01/20/2004
Conveyance:	PATENT SECURITY RELEASE

Total properties: 31

Patent #:	4637578	Issue Dt:	01/20/1987	Application #:	06545488	Filing Dt:	10/26/1983
Title:	RAILROAD FROG HAVING MOVABLE WING RAILS

Patent #:	4624428	Issue Dt:	11/25/1986	Application #:	06652546	Filing Dt:	09/20/1984
Title:	SPRING RAIL FROG

Patent #:	4749419	Issue Dt:	06/07/1988	Application #:	06900996	Filing Dt:	08/28/1986
Title:	METHOD FOR HEAR TREATING RAIL

Patent #:	4738418	Issue Dt:	04/19/1988	Application #:	06909950	Filing Dt:	09/22/1986
Title:	ADJUSTABLE SWITCH POINT GUARD

Patent #:	4770342	Issue Dt:	09/13/1988	Application #:	07011120	Filing Dt:	02/05/1987
Title:	ADJUSTABLE RAIL BRACE

Patent #:	4824015	Issue Dt:	04/25/1989	Application #:	07118215	Filing Dt:	11/06/1987
Title:	RAIL BRACE

Patent #:	4938438	Issue Dt:	07/03/1990	Application #:	07294423	Filing Dt:	01/09/1989
Title:	RAILROAD SWITCH STAND

Patent #:	5312075	Issue Dt:	05/17/1994	Application #:	07806377	Filing Dt:	12/13/1991
Title:	RAILROAD FROG

Patent #:	5176318	Issue Dt:	01/05/1993	Application #:	07825557	Filing Dt:	01/24/1992
Title:	GUARD RAIL ASSEMBLY

Patent #:	5236125	Issue Dt:	08/17/1993	Application #:	07898410	Filing Dt:	06/15/1992
Title:	A GUARD RAIL ASSEMBLY SUPPORT BLOCK

Patent #:	5238186	Issue Dt:	08/24/1993	Application #:	07898411	Filing Dt:	06/15/1992
Title:	A GUARD RAIL ASSEMBLY HOOK

Patent #:	5494243	Issue Dt:	02/27/1996	Application #:	08248668	Filing Dt:	05/25/1994
Title:	RAILROAD SWITCH STAND WITH FOOT OPERATED HANDLE LATCH

Patent #:	5454514	Issue Dt:	10/03/1995	Application #:	08279556	Filing Dt:	07/25/1994
Title:	RAIL ANCHOR ASSEMBLY

Patent #:	5419518	Issue Dt:	05/30/1995	Application #:	08360133	Filing Dt:	12/20/1994
Title:	RAILROAD SWITCH STAND HAVING FOOT AND HAND ACCOMMODATING THROW HANDLE

Patent #:	5544848	Issue Dt:	08/13/1996	Application #:	08384026	Filing Dt:	02/06/1995
Title:	RAILROAD SPRING FROG

Patent #:	5598993	Issue Dt:	02/04/1997	Application #:	08391197	Filing Dt:	02/21/1995
Title:	PSEUDO HEAVY POINT FROG ASSEMBLY

Patent #:	5496004	Issue Dt:	03/05/1996	Application #:	08516504	Filing Dt:	08/17/1995
Title:	DIRECT SUPPORT FROG ASSEMBLY

Patent #:	5560571	Issue Dt:	10/01/1996	Application #:	08537607	Filing Dt:	10/02/1995
Title:	REVERSIBLE WING INSERT FROG

Patent #:	5595361	Issue Dt:	01/21/1997	Application #:	08561568	Filing Dt:	11/22/1995
Title:	WING RAIL HOLD-DOWN

Patent #:	5653408	Issue Dt:	08/05/1997	Application #:	08635876	Filing Dt:	04/18/1996
Title:	DIRECT SUPPORT FROG ASSEMBLY

Patent #:	5746400	Issue Dt:	05/05/1998	Application #:	08759958	Filing Dt:	12/03/1996
Title:	RAIL CROSSING ASSEMBLY

Patent #:	5810298	Issue Dt:	09/22/1998	Application #:	08848803	Filing Dt:	05/01/1997
Title:	RAILROAD SPRING FROG ASSEMBLY

Patent #:	6152042	Issue Dt:	11/28/2000	Application #:	09206357	Filing Dt:	12/07/1998
Title:	RAILCAR RETARDER ASSEMBLY

Patent #:	6224023	Issue Dt:	05/01/2001	Application #:	09235892	Filing Dt:	01/22/1999
Title:	RAILROAD SPRING FROG ASSEMBLY

Patent #:	6158697	Issue Dt:	12/12/2000	Application #:	09251620	Filing Dt:	02/17/1999
Title:	RAILROAD FROG ASSEMBLY WITH LATCH HOLDBACK

Patent #:	6164602	Issue Dt:	12/26/2000	Application #:	09251841	Filing Dt:	02/17/1999
Title:	RAILROAD FROG ASSEMBLY WITH MULTI-POSITION HOLDBACK

Patent #:	6286791	Issue Dt:	09/11/2001	Application #:	09521338	Filing Dt:	03/09/2000
Title:	Railroad spring wing frog with hold-open and shock dampening elements

Patent #:	6276642	Issue Dt:	08/21/2001	Application #:	09521339	Filing Dt:	03/09/2000
Title:	Railroad spring wing frog assembly

Patent #:	6308897	Issue Dt:	10/30/2001	Application #:	09548029	Filing Dt:	04/12/2000
Title:	Lateral and vertical rail brace assembly

Patent #:	6427950	Issue Dt:	08/06/2002	Application #:	09585666	Filing Dt:	06/01/2000
Title:	ELECTRICALLY OPERATED RAILROAD SWITCH MACHINE

Patent #:	6568641	Issue Dt:	05/27/2003	Application #:	10156927	Filing Dt:	05/29/2002
Publication #:	US20030025044	Pub Dt:	02/06/2003
Title:	ELECTRICALLY OPERATED RAILROAD SWITCH MACHINE

Assignor

CONGRESS FINANCIAL CORPORATION (CENTRAL), AS AGENT

Exec Dt:

01/15/2004

Assignee

MERIDIAN RAIL TRACK PRODUCTS CORP.

2705 S. STATE STREET

CHICAGO HEIGHTS, ILLINOIS 60411

Correspondence name and address
	FEDERAL RESEARCH COMPANY, LLC
	ATTN: PENELOPE J.A. AGODOA
	1030 15TH STREET, NW, SUITE 920
	WASHINGTON, DC 20005

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