ULTRAFRAME PLC OF ENTERPRISE WORKS

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6318047 Roof beams with hollow section ductExpiredJun 29, 00Nov 20, 01[E04C]
6279290 Roof beams with positive engagement between cross bar and lower cappingExpiredJun 29, 00Aug 28, 01[E04D]
6122886 Roof beamsExpiredJul 25, 97Sep 26, 00[E04C]
6023922 Glazed structuresExpiredJul 28, 97Feb 15, 00[E04B]
5901528 Building elementsExpiredJul 28, 97May 11, 99[E04C]

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