Friedrichsfeld GmbH; Steinzeug- und Kunststoffwerke

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4560353 Tooth implantExpiredJul 18, 83Dec 24, 85[A61C]
4486178 Tooth implant made of metalExpiredAug 10, 83Dec 04, 84[A61C]
4407022 Femur component for an artificial hip jointExpiredJun 16, 81Oct 04, 83[A61F]
4185383 Dental implant having a biocompatible surfaceExpiredApr 29, 77Jan 29, 80[A61C]

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