RICHARDS, III.,JAMES D. AND MARTINE RICHARDS

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5986644 Remote control systemExpiredJul 30, 97Nov 16, 99[G09G]
5574479 Optical system for determining the roll orientation of a remote unit relative to a base unitExpiredJan 07, 94Nov 12, 96[G09G]
5359348 Pointing device having improved automatic gain control and information reportingExpiredMay 21, 92Oct 25, 94[G09G]
D342256 Remote control unitExpiredSep 12, 91Dec 14, 93[]
5045843 Optical pointing deviceExpiredDec 06, 88Sep 03, 91[H04N, G09G]
4823170 Line of sight measuring systemExpiredFeb 22, 85Apr 18, 89[G01B]
4576481 Passive optical position measurement systemExpiredDec 13, 82Mar 18, 86[G01B]

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