FINIC B.V.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5080528 Method and apparatus for impounding fluidsExpiredJan 30, 90Jan 14, 92[B09B]
5056242 Underground wall construction method and apparatusExpiredMay 12, 89Oct 15, 91[E02D, E02F]
4880334 Tunnel construction apparatus and methodExpiredApr 11, 88Nov 14, 89[E21D, E01G]
4877358 Method and apparatus of constructing a novel underground impervious barrierExpiredJan 30, 89Oct 31, 89[E02D]
4863312 Underground leachate and pollutant drainage barrier systemExpiredJul 26, 83Sep 05, 89[F16L, E02B]
4741644 Environmental cut-off and drainExpiredApr 11, 85May 03, 88[E02B, E02D]
4728226 Method and apparatus for forming reinforced concrete walls with continuous steel reinforcementExpiredApr 10, 84Mar 01, 88[E04B, E02D]
4696607 Slurry trench method and apparatus for constructing underground wallsExpiredJul 30, 80Sep 29, 87[E02D]
4601615 Environmental cut-off for deep excavationsExpiredFeb 22, 83Jul 22, 86[E02D]
4582453 Method and apparatus for in situ forming underground panelized concrete walls with improved joint structureExpiredAug 16, 84Apr 15, 86[E02D]
4496268 Method and apparatus for constructing reinforced concrete walls in the earthExpiredMar 01, 83Jan 29, 85[E21D, E02D]
4456401 Method and apparatus for relining underground passagewayExpiredNov 09, 81Jun 26, 84[E21D, B29C, B32B]

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