WEBER, SALLY

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5048952 Liquid mixing ratio sensorExpiredAug 30, 89Sep 17, 91[G01N]
5009484 Diffraction gratings having high efficienciesExpiredMay 03, 89Apr 23, 91[G02B]
4850682 Diffraction grating structuresExpiredJul 14, 86Jul 25, 89[G02F]

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