Spectacles having head retainers
Patent 5120119 Issued on June 9, 1992. Estimated Expiration Date: 
April 20, 2010. 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 20, 2010. 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 171056 1026272 3308376 Weight for spectacle frame and method of attachment Patent #: 4139281 InventorApplicationNo. 511709 filed on 04/20/1990US Classes:351/157, Neck retainers351/156, With head embracing bow or chain351/158CombinedExaminersPrimary: Bovernick, Rodney B.Attorney, Agent or FirmForeign Patent References
International ClassG02C 001/00AbstractThe present invention provides a pair of spectacles comprising a pair of lenses held by the respective lens frames, a side extending ackwardly from each of said lens frames and balancing means for eliminating or reducing the load on the nose of a user. Therefore, the spectacles of the present invention requires no or substantially no bridge means for supporting the weight of the spectacles on the nose of the user.Other References
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