Absorbable bone screw and tool for its insertion
Patent 6077267 Issued on June 20, 2000. Estimated Expiration Date: 
June 20, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 20, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1007107 1300275 2180633 2267925 2347567 3695321 Tamper resistant fastener and tool for operating same Method of removing broken threaded fasteners Nonslip fastener torquing system Combination tool including spanner wrench and screwdriver Patent #: 4466315 InventorApplicationNo. 424067 filed on 04/19/1995US Classes:606/73, Threaded fastener element81/437, Combined with or usable as diverse-type wrench411/405, Opposed open ended plural slots, e.g., spanner, etc.411/919, SCREW HAVING DRIVING CONTACTS606/77, Absorbable606/104Screw or pin placement or removal meansExaminersPrimary: DeMille, Danton D.Attorney, Agent or FirmForeign Patent References
International ClassesA61B 017/86A61B 017/88 AbstractA bone screw comprises a threaded shank having an axis of rotation. A head is integral with the shank, and the head includes a surface disposed generally normal to the axis. A plurality of drive receivers are disposed about the surface wholly remote from the axis. Each of the drive receivers is adapted for engagement with a cooperating driver element of a rotary driver so that the head and thereby the shank may be rotated about the axis.Other References
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