Shiratori Co., Ltd.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5176546 Leisure boatExpiredMay 30, 91Jan 05, 93[B63H]
5135439 Roller elements for playground slidesExpiredOct 22, 90Aug 04, 92[A63G]
5069443 Water slider laneExpiredAug 15, 90Dec 03, 91[A63G]
5061091 Bearing caseExpiredOct 31, 90Oct 29, 91[F16C]
5052955 Leisure boatExpiredMay 16, 90Oct 01, 91[B63B]
4984783 Water sliders with turning toboggansExpiredOct 20, 89Jan 15, 91[A63G]

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