WATERS INSTRUMENTS, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2002/0162,994 Fence post assembly, portable fencing system and methodAbandonedMar 22, 02Nov 07, 02[E04H]
6131885 Plastic, T-shaped fence postExpiredAug 11, 97Oct 17, 00[E04H]
5959255 Insulator for chain link fenceExpiredFeb 11, 98Sep 28, 99[H01B]
5794870 Bag re-rolling apparatusExpiredDec 23, 96Aug 18, 98[B65H]
5052395 Non-invasive ultrasonic pulse doppler cardiac output monitorExpiredMay 16, 90Oct 01, 91[A61B]
4883923 Electric fence insulator for holding various conductor types, including tape-typeExpiredApr 21, 89Nov 28, 89[H01B]
4721508 Ostomy prosthesisExpiredOct 09, 84Jan 26, 88[A61F]
4665912 Skin marking deviceExpiredAug 09, 85May 19, 87[A61B]
4662890 Tubular medical prosthesisExpiredOct 09, 84May 05, 87[A61F]
4381765 Ileostomy valveExpiredApr 02, 81May 03, 83[A61B]
4283099 Locker cabinetExpiredJul 16, 79Aug 11, 81[A47B]

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