Rimless eyeglasses
Patent 6729725 Issued on May 4, 2004. Estimated Expiration Date: 
March 14, 2023. 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.
March 14, 2023. 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 ReferencesLens coupling structure for rimless eyeglasses Patent #: 5450141 InventorAssigneeApplicationNo. 10387511 filed on 03/14/2003US Classes:351/110, Rimless mounting351/124BridgesExaminersPrimary: Dang, Hung XuanAttorney, Agent or FirmInternational ClassG02C 102AbstractA rimless eyeglass frame with the lenses secured to hinge portions of the temples and to the bridge by a threaded bolt and nut assembly with the hinge portions and bridge including two projecting teeth at each connection to the eyeglass lenses and with the projecting teeth gripping the eyeglass lenses and helping to secure them in place. | |
