Root post
Patent 4952150 Issued on August 28, 1990. Estimated Expiration Date: 
December 6, 2008. 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.
December 6, 2008. 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.InventorsAssigneeApplicationNo. 280434 filed on 12/06/1988US Classes:433/220By postExaminersPrimary: Stone, Cary E.Attorney, Agent or FirmForeign Patent References
International ClassA61C 005/08Foreign Application Priority Data1987-12-10 DEAbstractIn dental technology, in order to match root posts to curved root canals, the fixation part consists of a material with mechanical properties, such as ductility and flexural rigidity, that permit topical matching of the fixation part to the curved root canal. For example, the ductility increases from the oral side of the fixation part to the root apex. | |
