GTE Lenkurt Incorporated

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

  • No Technology to Display

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

  • No Recent Patents to Display

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4603234 Switching circuit including current limiting and initializing signal isolationExpiredApr 04, 83Jul 29, 86[H03K]
4602133 Adaptive echo cancelling system and method utilizing linear code spacingExpiredJul 23, 82Jul 22, 86[H04B]
4587382 Echo canceller using end delay measurementExpiredJul 29, 82May 06, 86[H04B]
4577064 Auto-balance circuit for battery feed in a telephone circuitExpiredAug 12, 85Mar 18, 86[H04M]
4572927 Current limiter for telephone office signallingExpiredMar 09, 83Feb 25, 86[H04M, H03K]
4560834 Current limiter circuit for battery feed in a telephone circuitExpiredApr 29, 83Dec 24, 85[H04M]
4552994 Apparatus for isolating the voice frequency path from the floating battery feed during signallingExpiredDec 13, 82Nov 12, 85[H04M]
4553129 Data transmission by subrate groupingExpiredAug 05, 83Nov 12, 85[H03K]
4547739 Signal demodulation system for wideband FMExpiredMay 16, 83Oct 15, 85[H03D]
4542265 Echo canceller dynamic range extensionExpiredMay 20, 83Sep 17, 85[H04B]
4536614 Supervision and dial pulse detection circuit for a telephone subscriber lineExpiredDec 13, 82Aug 20, 85[H04M]
4513341 Overvoltage protection circuit for power supplyExpiredJul 25, 83Apr 23, 85[H02H]
4511763 Floating dc current source for a subscriber loop circuitExpiredNov 01, 82Apr 16, 85[H04M]
4510466 Switched capacitor SSB modulatorExpiredJun 28, 82Apr 09, 85[H03K, H03C]
4510467 Switched capacitor DSB modulator/demodulatorExpiredJun 28, 82Apr 09, 85[H03K]
4507626 Switched capacitor SSB modulatorExpiredJun 28, 82Mar 26, 85[H03K, H03C]
4504803 Switched capacitor AM modulator/demodulatorExpiredJun 28, 82Mar 12, 85[H03K, H03C]
4504804 Switched capacitor balanced modulator/demodulatorExpiredJun 28, 82Mar 12, 85[H03K, H03C]
4494093 Lockable tuning mechanism with reduced backlashExpiredNov 01, 82Jan 15, 85[H01P]
4477857 Printed circuit fuseExpiredDec 27, 82Oct 16, 84[H02H]

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.