Pearlstein; Leonard

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5849816 Method of making high performance superabsorbent materialExpiredJan 31, 96Dec 15, 98[C08L, C08K, B32B]
5549590 High performance absorbent particles and methods of preparationExpiredAug 01, 94Aug 27, 96[A61F, B32B]
5540962 Degradable package for containment of liquidsExpiredApr 06, 94Jul 30, 96[B65D]
5539019 High performance absorbent particles and methods of preparationExpiredJun 01, 95Jul 23, 96[C08L, C08K, B32B]
5458933 Compostable packaging for containment of liquidsExpiredDec 17, 93Oct 17, 95[B65D]
5409747 Disposable container for moist paper towels and a method of making the sameExpiredNov 19, 93Apr 25, 95[B65D]

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