Eyeglass frame with detachable frame front
Patent 4402577 Issued on September 6, 1983. Estimated Expiration Date: 
February 11, 2001. 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.
February 11, 2001. 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 2380638 3238005 3713732 Eyeglass frames openable at the bridge Patent #: 4345824 InventorAssigneeApplicationNo. 06/233566 filed on 02/11/1981US Classes:351/125, Crossbar type351/140ConnectorsExaminersPrimary: Corbin, John K.Assistant: Bovernick, Rodney B. Attorney, Agent or FirmInternational ClassesG02C 5/00 (20060101)G02C 1/06 (20060101) G02C 1/00 (20060101) G02C 1/04 (20060101) Foreign Application Priority Data1980-02-18 FRAbstractAn eyeglass frame with a detachable frame front is disclosed. The eyeglass frame comprises a main frame structure including a main cross bar and hinged temples at its ends, and the separate, detachable frame front comprises rims interconnected by a pair of parallel cross members defining a bridge. A fastener member or pad is secured to the underside of the main cross bar and has a pair of parallel grooves cooparable with the cross members for releasably securing the latter in position. One of the grooves is along the front surface of the fastener member and the other groove lies along the lower surface thereof. The fastener member also has one or more apertures cooperable with teats on an additional (sun) frame front for releasable securing the latter. Alternatively the additional frame front may be pivotally mounted on the fastener member. | |
