Texas Iron Works, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5036922 Single plug arrangement, lock therefor and method of useExpiredMar 30, 90Aug 06, 91[E21B]
5020597 Arrangement and method for conducting substance and lock thereforExpiredFeb 01, 90Jun 04, 91[E21B]
5018579 Arrangement and method for conducting substance and seal thereforExpiredFeb 01, 90May 28, 91[E21B]
5018582 Hydraulic running and release tool with mechanical emergency releaseExpiredJun 04, 90May 28, 91[E21B]
4993493 Retrievable landing method and assembly for a well boreExpiredApr 30, 87Feb 19, 91[E21B]
4972908 Packer arrangementExpiredOct 16, 89Nov 27, 90[E21B]
4966236 Cementing method and arrangementExpiredMay 09, 89Oct 30, 90[E21B]
4926936 Multiple purpose liner hanger constructionExpiredJul 20, 89May 22, 90[E21B]
4898245 Retrievable well bore tubular member packer arrangement and methodExpiredFeb 27, 89Feb 06, 90[E21B]
4854383 Manifold arrangement for use with a top drive power unitExpiredSep 27, 88Aug 08, 89[E21B]
4854386 Method and apparatus for stage cementing a liner in a well bore having a casingExpiredAug 01, 88Aug 08, 89[E21B]
4834185 Method and apparatus for manipulating a well bore linerExpiredJan 15, 88May 30, 89[E21B]
4776395 Well bore treating fluid toolExpiredMar 09, 87Oct 11, 88[E21B]
4722389 Well bore servicing arrangementExpiredAug 06, 86Feb 02, 88[E21B]
4690220 Tubular member anchoring arrangement and methodExpiredMay 01, 85Sep 01, 87[E21B]
4688642 Rotatable liner with multiple simultaneously set liner hanger arrangement and methodExpiredJan 29, 86Aug 25, 87[E21B]
4646842 Retrievable well bore assemblyExpiredApr 20, 84Mar 03, 87[E21B]
4562889 Method and apparatus for rotating and reciprocating well bore linerExpiredApr 13, 84Jan 07, 86[E21B]
4537251 Arrangement to prevent premature expansion of expandable seal meansExpiredApr 06, 84Aug 27, 85[E21B]
4391325 Liner and hydraulic liner hanger setting arrangementExpiredOct 27, 80Jul 05, 83[E21B]

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