UNITED CONTAINER DHC, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5582874 Method for coating corrugating rolls using high velocity oxygen fueled thermal sprayExpiredNov 29, 94Dec 10, 96[C23C]
5180448 Method of laser hardening corrugating rollsExpiredAug 22, 90Jan 19, 93[C21D]
5160556 Method of hardening corrugating rollsExpiredAug 31, 90Nov 03, 92[C21D]
5156714 Heater for a corrugating machineExpiredMay 24, 90Oct 20, 92[B31F]

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