LUWA BAHNSON, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5729862 Textile cleaning machine with high-efficiency air circulationExpiredDec 08, 95Mar 24, 98[B08B]
5177950 Flexible whirl-cleaning nozzleExpiredDec 06, 90Jan 12, 93[D01H]
5178247 Raceway for supporting and guiding a power chainExpiredMay 06, 91Jan 12, 93[H02G]
4936086 Apparatus for stripping yarn ends from spindlesExpiredJan 25, 90Jun 26, 90[B08B, B65H, D01H]
4697298 Traveling cleaner systemExpiredSep 30, 86Oct 06, 87[A47L]
4572745 Single-air traveling suction blower cleaner with automatic doffingExpiredSep 18, 84Feb 25, 86[B08B]
4506514 Controlling energy in an air-conditioning systemExpiredApr 30, 84Mar 26, 85[B01F]
4435876 Fiber waste disposal system for traveling pneumatic cleanersExpiredOct 13, 82Mar 13, 84[A47L]
4411043 Traveling pneumatic cleaner with reversing arrangementExpiredApr 02, 82Oct 25, 83[A47L]
4399864 Controlling room-air temperature and humidity in an air-conditioning systemExpiredDec 10, 81Aug 23, 83[G05D, F24F]
4333772 Traveling pneumatic cleaner and automatic unloading arrangement and methodExpiredJun 18, 80Jun 08, 82[A47L]
4278617 HumidifierExpiredMar 03, 80Jul 14, 81[B01F]
4246987 Mounting assembly for electrically conductive railExpiredApr 04, 79Jan 27, 81[B60M]
4198726 Traveling pneumatic cleaner filterExpiredJun 28, 79Apr 22, 80[A47L]

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