H. WEIDMANN AG

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6355017 Cannula for medical syringesExpiredJun 18, 99Mar 12, 02[A61M]
6015396 Automatic cannula withdrawing device for injection syringesExpiredDec 12, 97Jan 18, 00[A61M]
5383604 Water outlet head for a sanitary fittingExpiredFeb 02, 94Jan 24, 95[F16K, B05B, E03C]
5022791 Process, anchoring member, and clamping device for clamping a rodExpiredFeb 06, 90Jun 11, 91[E21D]
4664573 Mine wall support anchorExpiredJan 07, 86May 12, 87[F16B]
4665303 Thermal developing apparatusExpiredNov 08, 85May 12, 87[G03G]
4538940 Arrangement for force transfer between longitudinally stressed membersExpiredMay 11, 83Sep 03, 85[E21D]
4523880 Tie rod assembly for rock borehole anchorExpiredMay 04, 83Jun 18, 85[E21D, F16B]

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