Patent Assignment Details
NOTE:Results display only for issued patents and published applications.
For pending or abandoned applications please consult USPTO staff.
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Reel/Frame: | 005811/0527 | |
| Pages: | 46 |
| | Recorded: | 03/01/1991 | | |
Conveyance: | SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). |
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Total properties:
6
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Patent #:
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Issue Dt:
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09/13/1988
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Application #:
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06817584
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Filing Dt:
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01/10/1986
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Title:
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CAST HOPPER TEE
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Patent #:
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Issue Dt:
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10/13/1987
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Application #:
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06885171
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Filing Dt:
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07/14/1986
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Title:
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REINFORCED INDUSTRIAL BUTTERFLY VALVE
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Patent #:
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Issue Dt:
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04/18/1989
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Application #:
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07143198
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Filing Dt:
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01/13/1988
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Title:
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POSITIVE FLUID SEAL BUTTERFLY VALVE
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Patent #:
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Issue Dt:
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07/18/1989
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Application #:
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07186104
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Filing Dt:
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04/25/1988
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Title:
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CAST HOPPER TEE
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Patent #:
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Issue Dt:
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03/20/1990
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Application #:
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07233359
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Filing Dt:
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08/18/1988
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Title:
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DUST FILTERING AND COLLECTION SYSTEM
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Patent #:
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Issue Dt:
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12/26/1989
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Application #:
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07279718
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Filing Dt:
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12/05/1988
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Title:
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MOLDED HOPPER TEE
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Correspondence name and address
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WINTHROP & WEINSTINE
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3200 MINNESOTA WORLD TRADE CENTER
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30 EAST SEVENTH STREET
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SAINT PAUL, MN 55101
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ATTN: JULIE K. WILLIAMSON
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