REFAC TECHNOLOGY DEVELOPMENT CORPORATION

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5360249 Multifunctional end effectorsExpiredMar 08, 93Nov 01, 94[B25J]
4852928 Robotic end effectorsExpiredApr 07, 88Aug 01, 89[B25J]
4809425 Adaptable, programmable production systemExpiredMay 25, 88Mar 07, 89[B23Q]
4781519 End effector toolsExpiredJun 04, 87Nov 01, 88[B25J]
4723353 Exchangeable multi-function end effector toolsExpiredJul 10, 86Feb 09, 88[B23Q, B25J]
4638231 Robotic collision sensors and compliance devicesExpiredDec 06, 84Jan 20, 87[G05B]
4627785 Exchangeable multi-function end effector toolsExpiredMay 14, 84Dec 09, 86[B25J]
4591198 Robotic end effectorsExpiredFeb 16, 84May 27, 86[B25J]

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