KEY OCEAN SERVICES, INC., A CORP. OF TEXAS

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4812927 Head-to-disk interference detectorExpiredNov 05, 87Mar 14, 89[G11B]
4781404 Multi-path fluid swivelExpiredOct 28, 87Nov 01, 88[F16L]
4701143 Vessel mooring system and method for its installationExpiredApr 29, 86Oct 20, 87[E21B]
4698038 Vessel mooring system and method for its installationExpiredOct 17, 84Oct 06, 87[E21B]

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