URSO, CHARLES L.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5,816,271 Self-guiding flosserExpiredDec 14, 95Oct 06, 98[A61C]
5,722,440 Bite device for driving floss through tight interdental gapsExpiredMar 25, 96Mar 03, 98[A61C]
5,323,796 Automated dental flosserExpiredSep 24, 92Jun 28, 94[A61C]

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