A.T. RAMOT PLASTICS LTD.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4392960 Process for the removal of urea from aqueous solutionsExpiredJan 27, 76Jul 12, 83[B01D]
4375346 Diaphragm pumpExpiredMar 18, 80Mar 01, 83[F04B]
4360480 Aromatic diamino phosphoramides, thiophosphoramides and phosphoramidatesExpiredJun 02, 80Nov 23, 82[C08G]
4340475 Membrane separation cellExpiredJan 22, 80Jul 20, 82[B01D]
4338190 Peritoneal artificial kidneyExpiredFeb 08, 77Jul 06, 82[B01D]
4233434 Polyamide from aromatic phosphorus containing diamineExpiredMay 09, 78Nov 11, 80[C08G]
4182582 Porous tubes and hollow profile structures and method of making sameExpiredJan 17, 77Jan 08, 80[B29D, A01G]

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