Baird Corporation

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4,831,262 Radioactivity detection systemExpiredApr 19, 82May 16, 89[G01T]
4,797,745 Video image enhancerExpiredFeb 11, 85Jan 10, 89[H04N]
4,641,968 Mobile spectrometric apparatusExpiredDec 17, 84Feb 10, 87[G01J]
4,620,148 Current meterExpiredAug 27, 84Oct 28, 86[G01R, H03K]
4,592,096 Latch for mounting a goggle system to a face maskExpiredJul 05, 84Jun 03, 86[A61F]
4,591,267 SpectrometerExpiredJan 16, 85May 27, 86[G01J, G01N]
4,590,165 Automatic sampling systemExpiredMay 03, 84May 20, 86[G01N]
4,588,295 Radiation measuring systemExpiredOct 07, 83May 13, 86[G01J]
4,575,241 SpectrometerExpiredSep 29, 83Mar 11, 86[G01N]
4,567,370 Authentication deviceExpiredFeb 21, 84Jan 28, 86[G01N]
4,528,158 Automatic sampling systemExpiredJun 14, 82Jul 09, 85[G01N]
4,432,644 SpectrometerExpiredApr 16, 81Feb 21, 84[G01N]
4,430,000 Radiation measuring systemExpiredJan 19, 81Feb 07, 84[G01D, G01J]
4,300,834 Inductively coupled plasma atomic fluorescence spectrometerExpiredMay 22, 80Nov 17, 81[G01N]
4,301,372 Portable fluorescence instrumentExpiredMay 12, 80Nov 17, 81[G01J, G01N]
4,214,835 Spectrometer sequential readout systemExpiredJan 02, 79Jul 29, 80[G01J]
4,197,583 Image display systemExpiredMay 03, 78Apr 08, 80[G01T, G06F]

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