SOLETANCHE

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5056959 Method and device for stripping from the concrete to which it adheres the header of a wall section cast in the groundExpiredMay 31, 90Oct 15, 91[E02D]
4991322 Device for affixing cutter drums to an apparatus intended for cutting trenches in the groundExpiredJan 12, 90Feb 12, 91[E02F]
4989824 Motor block fastening device for a trenching machineExpiredNov 17, 89Feb 05, 91[F16M]
4948301 Device comprising a valve for injecting grout around or inside a tubular pile driven into the groundExpiredFeb 21, 89Aug 14, 90[F02D]
4904119 Process for placing a piling in the ground, a drilling machine and an arrangement for implementing this processExpiredOct 19, 87Feb 27, 90[E02D]
4902171 Process for reinforcing a driven tubular piling, the piling obtained by this process, an arrangement for implementing the processExpiredFeb 08, 88Feb 20, 90[E02D]
4900197 Process for holding up the lateral walls of deep ditchesExpiredAug 05, 88Feb 13, 90[E02D]
4882859 Excavating bucket having scoopsExpiredOct 25, 88Nov 28, 89[B66C]
4883134 Milling machine for cutting trenchesExpiredSep 25, 87Nov 28, 89[E21B]
4844549 Milling machine for digging trenches in the earthExpiredJul 15, 88Jul 04, 89[E02F]
4834579 Waterproofing dams and the likeExpiredNov 23, 87May 30, 89[E02B]
4824176 Milling engine for excavating trenches in the groundExpiredSep 17, 87Apr 25, 89[F21C]
4800967 Drilling machine for digging trenches in the groundExpiredAug 05, 87Jan 31, 89[E21B]
4770255 Arrangement for underwater drilling of foundationsExpiredApr 16, 87Sep 13, 88[E21B]
4762443 Method of rendering soils imperviousExpiredJul 30, 86Aug 09, 88[E02D]
4742876 Submarine drilling deviceExpiredOct 09, 86May 10, 88[E21B]
4682660 Hydro-drill with circular impressionExpiredDec 12, 85Jul 28, 87[E21B]
4650012 Apparatus for cleaning drillsExpiredMay 01, 85Mar 17, 87[E21B]
4634860 Device for determining the position of a moving part and drilling machine including such a deviceExpiredApr 26, 84Jan 06, 87[G01D]
4615643 Method of sealing off a mass of waste stock containing metal cationsExpiredJul 24, 85Oct 07, 86[E02D]

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