DANMIN SOFTWARE AND TECHNOLOGY INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4801246 Device for elevating liquids with a plurality of intermediate containers communicating with one anotherExpiredAug 11, 87Jan 31, 89[F04F]
4625242 Method of and system for representing information dataExpiredApr 24, 85Nov 25, 86[H04N]
4619273 Device for diagnosing and monitoring urological diseasesExpiredAug 04, 83Oct 28, 86[A61B]
4613284 Apparatus for elevating liquids including a Venturi pipe and a liquid delay elementExpiredSep 03, 85Sep 23, 86[F04B, F04F]
4586527 Gas-plug type valveExpiredApr 30, 84May 06, 86[F16L]
4583918 Arrangement for elevating liquid by use of solar and/or wind energyExpiredFeb 12, 85Apr 22, 86[F04F]
4573877 Apparatus for elevating liquids including a pair of Venturi pipes having wind as motive fluidExpiredFeb 12, 85Mar 04, 86[F04B, F04F]
4540014 Hydraulic memory deviceExpiredJan 25, 84Sep 10, 85[F04F]
4538619 Analyzer of impulse processes of heart activityExpiredNov 09, 83Sep 03, 85[A61N]
4539471 Hydraulic counting cellExpiredApr 30, 84Sep 03, 85[G06D]
4527956 Pipe for elevating liquid, and device provided therewithExpiredApr 30, 84Jul 09, 85[F04F]

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