Bright and Morning Star

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4772094 Optical stereoscopic system and prism windowExpiredFeb 05, 85Sep 20, 88[G02B]
4588259 Stereoscopic optical systemExpiredJul 31, 84May 13, 86[G02B]
4582393 Polarizing optical stereoscopic system and eyepiece using triangular prismsExpiredMay 04, 84Apr 15, 86[G02B]
4422720 Stereoscopic viewing and projection systemExpiredOct 09, 80Dec 27, 83[G02B]
4235515 Stereoscopic viewing systemExpiredJun 29, 78Nov 25, 80[G02B]

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