UNIVERSITY OF LEEDS INDUSTRIAL SERVICES LIMITED

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5386826 Tracheal tube assembliesExpiredApr 29, 92Feb 07, 95[A61M]
5119811 Tracheal assembly having inner and outer tubes and surface materialsExpiredFeb 19, 91Jun 09, 92[A62B, A61M]
5071641 Method of setting hairExpiredJun 12, 89Dec 10, 91[A61K, A45D]
4679784 Fabric pickup deviceExpiredJun 06, 85Jul 14, 87[B65H]
4482541 Water soluble glass articles, their manufacture, and their use in the treatment of ruminant animalsExpiredFeb 23, 83Nov 13, 84[A61K]
4390674 Uniaxially drawn vinylidene fluoride polymersExpiredJul 21, 81Jun 28, 83[H01L, B29C, B32B]
4258454 Apparatus for feeding fibres to a carding machineExpiredOct 09, 79Mar 31, 81[D01G]
4242758 Elbow prosthesisExpiredMay 30, 78Jan 06, 81[A61F]

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