Terra Marine Engineering, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5001727 Carrier and data recovery and demodulation systemExpiredFeb 15, 89Mar 19, 91[H04L]
4962510 Phase modulated system with phase domain filteringExpiredMay 13, 88Oct 09, 90[H04L]
4868795 Power leveling telemetry systemExpiredDec 09, 87Sep 19, 89[G01V]
4864546 Vibrator seismic data correlation systemExpiredMar 23, 87Sep 05, 89[G01V]
4745628 Symbol generator for phase modulated systemExpiredApr 15, 86May 17, 88[H04L]
4663744 Real time seismic telemetry systemExpiredAug 31, 83May 05, 87[G01V]

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