Teeth cleaning implement
Patent 4271854 Issued on June 9, 1981. Estimated Expiration Date: 
April 5, 1999. 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.
April 5, 1999. 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 435350 1654230 2527857 3672378 Combined tooth pick and tooth cleaning implement Patent #: 3954115 InventorApplicationNo. 06/027500 filed on 04/05/1979US Classes:132/329Having specified shapeExaminersPrimary: McNeill, Gregory E.Attorney, Agent or FirmInternational ClassesA61C 15/00 (20060101)A61C 15/02 (20060101) Foreign Application Priority Data1978-04-18 SEAbstractAn implement suited for cleaning also interproximal faces at the molars is made of pliable material, and includes a middle portion and two tapering end portions issuing therefrom. The middle portion is formed with a cross section to make it substantially rigid in use, and the end portions are bent in the same direction with respect to the middle portion.The end portions have a triangular cross section adjacent to the middle portion and taper towards the distal ends, where the end portions are very slim compared with the cross section adjacent to the middle portion. At least the side face of the each end portion turned inwards at the bend is roughened. | |
