Alsthom-Atlantique

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Patent Activity in the Last 10 Years

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4832567 Turbine stageExpiredJul 01, 88May 23, 89[F01D]
4830520 Method of protecting a limited-displacement mechanical system against an agressive mediumExpiredNov 09, 87May 16, 89[F16C]
4778338 Turbine stageExpiredAug 12, 82Oct 18, 88[F01D]
4757122 Stabilized varnish without solvent for impregnating electric winding insulationExpiredAug 14, 86Jul 12, 88[C08G, C08F]
4715834 Connector for a telescopic isolating switchExpiredMay 30, 85Dec 29, 87[H01R]
4689095 Steel for manufacturing large forged partsExpiredJun 05, 85Aug 25, 87[C22C]
4680222 Process and device for electric winding insulation by impregnation, and stabilized varnish without solvent usable thereinExpiredJul 13, 84Jul 14, 87[H01B]
4675637 Superconducting static machine having a magnetic circuitExpiredMay 06, 85Jun 23, 87[H01F]
4670973 Method of making an insulating stayExpiredJan 27, 86Jun 09, 87[H01B]
4657653 Catalyst for a basic solution electrolyzerExpiredMay 29, 85Apr 14, 87[C25D, C25B, B05D]
4647372 Sludge belt apparatus for clarifying liquid charged with solid matterExpiredJul 31, 85Mar 03, 87[B01D]
4639565 High tension arc-blast circuit breakerExpiredMay 21, 85Jan 27, 87[H01H]
4634340 Equipment for controlling the extraction pressure of an extraction condensing turbineExpiredJul 18, 85Jan 06, 87[F01D]
4630542 NacelleExpiredApr 25, 84Dec 23, 86[B63B]
4628693 Casing for district heating turbineExpiredFeb 28, 85Dec 16, 86[F01K]
4625503 Method and device for stranding multifilament superconductor strandsExpiredJun 24, 85Dec 02, 86[D07B, D02J]
4614459 Floating tube apparatus for providing a sealed reversible and remote-controlled connection between ducts in particular underwater ductsExpiredJul 18, 85Sep 30, 86[F16L]
4611952 Method of fabricating the lines of a taut-line platform and of prepositioning them prior to final fixingExpiredNov 14, 84Sep 16, 86[E02D]
4608853 Percussion apparatusExpiredFeb 07, 85Sep 02, 86[B21D]
4609304 Apparatus for enabling a self-contained submersible module including a length of conduit for connection to a collector to be repetitively put into place and removedExpiredOct 19, 83Sep 02, 86[F16L, E21B]

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