HALCYON WATERSPRING, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5530978 Softsided waterbed with interchangeable coverExpiredMar 08, 94Jul 02, 96[A47C]
5416937 Soft-sided waterbedExpiredAug 13, 93May 23, 95[A47C]
5411621 Waterbed corner structure and methodExpiredJan 25, 90May 02, 95[B29C]
5406660 Waterbed mattress with plastic netting fillExpiredMar 07, 94Apr 18, 95[A47C]
5392478 Waterbed with supplemental supportExpiredMar 21, 91Feb 28, 95[A47C]
5373594 Waterbed mattress with hose-actuated drain valve in cornerpieceExpiredNov 15, 93Dec 20, 94[F16K, A47C]
5271111 Waterbed mattress with drain valve operated by hose connectorExpiredFeb 21, 92Dec 21, 93[F16K, A47C]
5267362 Waterbed and frame assemblyExpiredMar 13, 92Dec 07, 93[A47C]
5244526 Method and apparatus for manufacturing a waterbed baffle structureExpiredApr 01, 92Sep 14, 93[B32B]
5231716 Waterbed and frame assemblyExpiredFeb 21, 92Aug 03, 93[A47C]
5172437 Waterbed mattress with hexagonal baffle structure, and method and apparatus for manufacturing the sameExpiredFeb 22, 91Dec 22, 92[A47C]
5172438 Waterbed mattress with equalized edge supportExpiredAug 16, 91Dec 22, 92[A47C]
5172441 Water mattress quilted top with stiffening insertsExpiredMar 04, 92Dec 22, 92[A47C, A47G]
5127118 Waterbed hose connectorExpiredAug 16, 91Jul 07, 92[A47C]
5113541 Waterbed corner structureExpiredAug 17, 90May 19, 92[A47C]
D322906 Waterbed mattress cornerpieceExpiredAug 18, 89Jan 07, 92[]
5068934 Waterbed mattress with hexagonal polypropylene baffle structuresExpiredAug 18, 89Dec 03, 91[A47C]
5062170 Waterbed mattress and corner structure with tethered insertExpiredAug 17, 90Nov 05, 91[A47C]
5050257 Easy draining waterbed mattress and methodExpiredAug 17, 90Sep 24, 91[A47C]
4930172 Waterbed corner structure and methodExpiredAug 18, 89Jun 05, 90[A47C]

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