NORDYNE INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0122,806 Compact and Efficient Heat Exchanger, Furnace, HVAC Unit, Building, and Method of MakingAbandonedNov 14, 08May 20, 10[F24H, F28F, B21D]
2003/0087,213 Ignition control system and methodAbandonedNov 07, 01May 08, 03[F23N, F23B, F23D]
2002/0134,528 Heat pump for a manufactured buildingAbandonedMar 23, 01Sep 26, 02[F25B]
4865013 Self-adjusting telescoping concentric flue assemblyExpiredNov 25, 88Sep 12, 89[F23J]
4709753 Uni-directional fin-and-tube heat exchangerExpiredSep 08, 86Dec 01, 87[F24B]
4633768 Supplemental ventilation apparatus for manufactured housingExpiredApr 01, 85Jan 06, 87[F24D, F24F]
4621686 Water vapor-condensing secondary heat exchangerExpiredSep 28, 84Nov 11, 86[F28B]
4611622 Drain for condensate from flue gasExpiredNov 13, 84Sep 16, 86[B08B]
4481411 Electrical heater rack assembly with stand-off insulatorsExpiredDec 21, 83Nov 06, 84[H05B]
4478206 Furnace having water vapor-condensing secondary heat exchangerExpiredJan 05, 84Oct 23, 84[F24H]
D275697 Electric baseboard heaterExpiredApr 15, 82Sep 25, 84[]
4467179 Portable electric baseboard heater having an integral handleExpiredSep 07, 82Aug 21, 84[F24H, H05B]
4337823 Electric furnace for mobile and modular homesExpiredOct 05, 79Jul 06, 82[F25B, F28F]
4280332 Defrost control monitoring fan motor temperature riseExpiredJul 30, 79Jul 28, 81[G08B, F25D]
4236381 Suction-liquid heat exchanger having accumulator and receiverExpiredFeb 23, 79Dec 02, 80[F25B]

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