ROSEDALE PRODUCTS, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8371453 Bottom feed liquid filterExpiredApr 22, 10Feb 12, 13[B01D]
5462678 Air blast backwash assembly for flexible filter deviceExpiredJan 06, 93Oct 31, 95[B01D]
5176826 Purge construction for a vibrating sieve filterExpiredOct 19, 90Jan 05, 93[B01D]
5128032 Vibrating sieve filter with barsExpiredOct 19, 90Jul 07, 92[B01D]
4970004 Vibrating sieve filterExpiredMar 14, 89Nov 13, 90[B01D]
4966697 Fluid filter retaining deviceExpiredJun 13, 89Oct 30, 90[B01D]
4721855 Method and apparatus for rapid measurements of electrical signals at circuit nodes of integrated circuits in which noise signals are also detectedExpiredJul 19, 84Jan 26, 88[G01R]
4701259 Fluid filter with filter retainerExpiredMar 27, 86Oct 20, 87[B01D]
4651570 Differential pressure monitorExpiredDec 03, 84Mar 24, 87[G01L]
4574047 Filtering deviceExpiredAug 06, 84Mar 04, 86[B01D]
4496459 Flexible filter device with means to position filter bagExpiredNov 04, 83Jan 29, 85[B01D]
4485844 Back pressure inducerExpiredApr 23, 82Dec 04, 84[F16K]
4419240 Fluid filtering deviceExpiredJul 30, 82Dec 06, 83[B01D]

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