OREAD LABORATORIES, INC., A CORP. OF KANSAS

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4891323 Method for assaying primary amines, secondary amines and peptides using fluorogenic derivatization reagentsExpiredMar 11, 87Jan 02, 90[G01N]
4860333 Error protected central control unit of a switching system and method of operation of its memory configurationExpiredMar 11, 87Aug 22, 89[H04M]
4837166 Assaying method for primary amines using aromatic dialdehydesExpiredApr 20, 87Jun 06, 89[G01N]
4769467 Fluorogenic 2,1,3-benzoxadiazoles and fluorometric amine/thiol assays therewithExpiredMay 01, 85Sep 06, 88[C07D, G01N]
4758520 Chemiluminescence method for assaying compounds containing primary amino groups using 1-cyano-2-substituted benz(f)- or naphth(f)-isoindole fluorescersExpiredMar 10, 86Jul 19, 88[G01N]
4540548 Method of detecting fluorescent materials and apparatus for their detectionExpiredJun 02, 83Sep 10, 85[G01N]
4419452 Method of detecting fluorescent materials and apparatus for their detectionExpiredAug 12, 81Dec 06, 83[G01N]

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