MERCANTILE TEXAS CREDIT CORPORATION

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4475585 Air conditioning and heat pump cabinets with removable coil guardsExpiredJun 11, 81Oct 09, 84[F28F]
4441241 Method of manufacturing a heat exchanger unitExpiredAug 21, 81Apr 10, 84[F24H, B23P]
4394111 Top cover, motor, fan and fan shroud assembly for an air conditioning unitExpiredSep 11, 81Jul 19, 83[F04B, F28F, F04D]
4298061 Heat exchanger with crimped flange seamExpiredAug 15, 80Nov 03, 81[F24H, F28F]
4217646 Automatic control system for a buildingExpiredDec 21, 78Aug 12, 80[H04Q, G05D]

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