Nishikawa Sangyo Co., Ltd.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6113082 SpringExpiredJun 25, 98Sep 05, 00[A47C, F16F]
5404603 Oscillating bedExpiredJul 21, 93Apr 11, 95[A61G]
5002511 Stuffed toys with heat responsive infrared radiationExpiredMar 08, 90Mar 26, 91[C03C, A63H]
4680822 Bedding incorporating far infrared radiatorExpiredMar 12, 86Jul 21, 87[A47C, A47G]
4637947 Heat insulation materialExpiredAug 14, 84Jan 20, 87[A41D, A47G, B32B]
4555421 Filling materialExpiredMay 11, 84Nov 26, 85[A41G]

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