Sangamo Weston Limited

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4468770 Data receivers incorporating error code detection and decodingExpiredFeb 24, 82Aug 28, 84[G06F]
4444063 Torque measuring systemsExpiredAug 25, 81Apr 24, 84[G01L]
4428061 Method and apparatus for receiving carrier-borne digital signals intended to operate remotely-operable switching devicesExpiredFeb 17, 81Jan 24, 84[H04L, G06F]
4420721 Electricity metersExpiredFeb 09, 81Dec 13, 83[G01R]
4419758 Transmission systems for transmitting signals over power distribution networks, and transmitters for use thereinExpiredFeb 17, 81Dec 06, 83[H04B]
4406924 Radio-controlled devices for use in power distribution circuitsExpiredFeb 17, 81Sep 27, 83[H04Q, H04B]
4388727 Receivers suitable for use in remotely-operable switching devices and data transmission systemsExpiredFeb 17, 81Jun 14, 83[H04L, H04B]
4244229 Differential pressure transducerExpiredMay 24, 79Jan 13, 81[G01L]

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