ITRON ELECTRICITY METERING, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4736644 Adjustable gear support bracketExpiredJan 17, 86Apr 12, 88[F16H]
4697180 System for accumulating verifiable energy demand data from remote electricity metersExpiredApr 09, 86Sep 29, 87[G08B]
4697181 System for accumulating verifiable energy demand data from remote electricity metersExpiredApr 09, 86Sep 29, 87[G08B]
4697182 Method of and system for accumulating verifiable energy demand data from remote electricity metersExpiredApr 09, 86Sep 29, 87[G08C]
4695742 Charge balance voltage-to-frequency converter utilizing CMOS circuitryExpiredJan 20, 87Sep 22, 87[H03L, H03K]
4682169 Method of and system for accumulating verifiable energy demand data from remote electricity metersExpiredApr 09, 86Jul 21, 87[G08C]
4653076 Timing signal correction system for use in direct sequence spread signal receiverExpiredMar 23, 84Mar 24, 87[H04L]
4644523 System for improving signal-to-noise ratio in a direct sequence spread spectrum signal receiverExpiredMar 23, 84Feb 17, 87[H04L, H04J]
4640985 Snap-fitting transformer terminal coverExpiredApr 26, 85Feb 03, 87[H01R, H01F]
4639728 Method of and system for accumulating verifiable energy demand data from remote electricity metersExpiredSep 16, 85Jan 27, 87[G08C]
4601047 Code division multiplexer using direct sequence spread spectrum signal processingExpiredMar 23, 84Jul 15, 86[H04L]
4593959 Digital signature plugExpiredOct 21, 83Jun 10, 86[H01R]
4588949 Meter removal indicatorExpiredSep 16, 83May 13, 86[G08B, G09F, G01R]
4588982 Optical shaft encoderExpiredSep 13, 84May 13, 86[H03M]
4525669 Power measurement in an electrical distribution system having three or more wiresExpiredDec 20, 82Jun 25, 85[G01R]
4509128 Solid-state electrical-power demand register and methodExpiredApr 16, 82Apr 02, 85[G06F]

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