Curtiss-Wright Corporation

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4460037 Tube construction for fluidized bed combustorExpiredJan 21, 81Jul 17, 84[F28D, F28F]
4426958 Fluidized bed combustor and coal gun-tube assembly thereforExpiredJan 21, 82Jan 24, 84[F28D]
4399652 Low BTU gas combustorExpiredAug 21, 81Aug 23, 83[F02C]
4387559 Fuel burner and combustor assembly for a gas turbine engineExpiredMay 13, 81Jun 14, 83[F02C]
4378744 Fluidized bed combustor and removable windbox and tube assembly thereforExpiredApr 27, 81Apr 05, 83[F23L]
4363504 High temperature lined conduits, elbows and teesExpiredJan 04, 80Dec 14, 82[F16L]
4315400 Method of and apparatus for preheating pressurized fluidized bed combustor and clean-up subsystem of a gas turbine power plantExpiredFeb 08, 80Feb 16, 82[F02C]
4311166 Valve assembly for use with high temperature and high pressure fluidsExpiredJun 20, 80Jan 19, 82[F16K]
4306411 Compressor protective control system for a gas turbine power plantExpiredFeb 08, 80Dec 22, 81[F02C]
4292022 Pressurized fluidized bed combustor and coal gun construction thereforExpiredAug 01, 79Sep 29, 81[F23D]
4292023 Fluidized bed combustor and removable windbox and tube assembly thereforExpiredAug 01, 79Sep 29, 81[F23D]
4290387 Fluidized bed combustor and tube construction thereforExpiredOct 04, 79Sep 22, 81[F28D]
4287156 Fluidized bed reactorExpiredMay 19, 80Sep 01, 81[F27B, B01J]
4252034 Free-floating planetary transmission with reversible outputExpiredJul 20, 79Feb 24, 81[F16H]
4242865 Turbojet afterburner engine with two-position exhaust nozzleExpiredJan 25, 78Jan 06, 81[F02K]

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