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Matthew S. Prucinsky
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Indianapolis, IN, US
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last 30 patents
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Patent Grant
Push pad trigger release exit device with infinite deadlocking
Patent number
5,904,384
Issue date
May 18, 1999
Von Duprin, Inc.
Gerald E. Mader
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Fire rated removable mullion
Patent number
5,794,382
Issue date
Aug 18, 1998
Von Duprin, Inc.
Matthew S. Prucinsky
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Push pad trigger release exit device with infinite deadlocking
Patent number
5,762,385
Issue date
Jun 9, 1998
Von Duprin, Inc.
Gerald E. Mader
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Push pad trigger release for a vertical rod exit device
Patent number
5,673,949
Issue date
Oct 7, 1997
Von Duprin, Inc.
Gerald E. Mader
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Push pad trigger release exit device with infinite deadlocking
Patent number
5,609,371
Issue date
Mar 11, 1997
Von Duprin, Inc.
Gerald E. Mader
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Removable cylinder locked mullion assembly
Patent number
5,450,697
Issue date
Sep 19, 1995
Von Duprin, Inc.
Matthew S. Prucinsky
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS