NEW A.C., INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5376163 Filter systemExpiredMay 18, 93Dec 27, 94[B01D]
5186655 RF connectorExpiredMay 05, 92Feb 16, 93[H01R]
5146283 Spectrophotometer sample cellExpiredMar 26, 91Sep 08, 92[G01N]
5049170 Filter assembly for gas analyzerExpiredSep 11, 90Sep 17, 91[B01D]
4918311 Set point control circuit for an infrared gas analyzerExpiredApr 15, 88Apr 17, 90[G01N]
4829183 Dual sample cell gas analyzerExpiredSep 11, 87May 09, 89[G01N]
4756670 Detecting method and apparatus using heat sensitive devicesExpiredOct 17, 86Jul 12, 88[F04B, A61B, G01F]
4692621 Digital anesthetic agent analyzerExpiredOct 11, 85Sep 08, 87[G01N]
4687934 Infrared gas analyzer with automatic zero adjustmentExpiredJan 10, 86Aug 18, 87[G01J, G01D]
4679573 Adaptor assembly for airway tubeExpiredAug 11, 86Jul 14, 87[A61B]
4591721 Oxygen analysis employing absorption spectroscopyExpiredOct 10, 84May 27, 86[G01J]
4510573 Method for X-ray fluorescence spectroscopyExpiredMay 06, 81Apr 09, 85[G01N, G06F]
4480190 Non-dispersive infrared gas analyzerExpiredMay 20, 82Oct 30, 84[G01N]
4437004 Modular gas analyzerExpiredAug 24, 81Mar 13, 84[G01J, G01N]
4423739 End tidal carbon dioxide gas analyzerExpiredAug 24, 81Jan 03, 84[A61B]
4398091 Temperature compensated gas analyzerExpiredAug 24, 81Aug 09, 83[G01N]
4346296 Non-dispersive infrared gas analyzerExpiredAug 15, 80Aug 24, 82[G01N]
4241309 Synchronizing method and apparatusExpiredOct 05, 78Dec 23, 80[H03K]
4233513 Gas analyzerExpiredOct 05, 78Nov 11, 80[G01J, G01N]
4200791 Gas analyzer and gas analyzing methodExpiredOct 11, 78Apr 29, 80[G01J]

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