Professional Positioners, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4448735 Tooth positioner with harder areasExpiredSep 30, 82May 15, 84[B29H, B29C]
4370129 Tooth positioner with harder areasExpiredJun 18, 81Jan 25, 83[A61C]
4253828 Orthodontic applianceExpiredApr 09, 79Mar 03, 81[A61C]

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