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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:014515/0388   Pages: 4
Recorded: 04/14/2004
Conveyance: RELEASE OF SECURITY INTEREST
Total properties: 7
1
Patent #:
Issue Dt:
03/17/1987
Application #:
06330982
Filing Dt:
12/15/1981
Title:
REFRACTORY STRUCTURE AND METHOD
2
Patent #:
Issue Dt:
06/04/1985
Application #:
06490816
Filing Dt:
05/02/1983
Title:
CARBON BONDED REFRACTORIES
3
Patent #:
Issue Dt:
03/25/1986
Application #:
06586373
Filing Dt:
03/05/1984
Title:
END BLOCK
4
Patent #:
Issue Dt:
12/24/1985
Application #:
06594512
Filing Dt:
03/29/1984
Title:
END BLOCK
5
Patent #:
Issue Dt:
08/18/1987
Application #:
06622922
Filing Dt:
06/21/1984
Title:
MEDIUM WEIGHT ABRASION-RESISTANT CASTABLE
6
Patent #:
Issue Dt:
12/01/1992
Application #:
07751018
Filing Dt:
08/28/1991
Title:
KILN CARS
7
Patent #:
Issue Dt:
Application #:
UNAVAILABLE
Filing Dt:
Title:
Assignor
1
Exec Dt:
02/11/2004
Assignee
1
PENN CENTER WEST, BUILDING 2
SUITE 430
PITTSBURGH, PENNSYLVANIA 15276
Correspondence name and address
DUANE MORRIS LLP
LEWIS F. GOULD, JR.
ONE LIBERTY PLACE
PHILADELPHIA, PA 19103

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