Ti-base material for eyeglass-frames and a method for producing same
Patent 4427746 Issued on January 24, 1984. Estimated Expiration Date: 
January 24, 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.
January 24, 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 2900715 3339271 3584368 3813258 3854194 3905828 Process for making a metallic coating on surfaces formed of titanium or another refractory metal Patent #: 3949122 InventorApplicationNo. 06/190943 filed on 09/26/1980US Classes:428/614, Laterally noncoextensive components (e.g., embedded, etc.)428/660, Refractory (Group IVB, VB, or VIB) metal-base component428/675Next to Co-, Cu-, or Ni-base componentExaminersPrimary: Lewis, MichaelAttorney, Agent or FirmInternational ClassesB32B 15/01 (20060101)G02C 5/00 (20060101) B21C 23/22 (20060101) Foreign Application Priority Data1979-09-28 JPAbstractIn production of a Ti-base materal for eyeglass-frames of a core and sheath construction by cladding, a combination of Ti or Ti-base alloy for the core and Ni or Ni-base alloy for the sheath effectively prevents formation of fragile intermetallic compounds at the border, thereby greatly increasing the brazing strength of the product for advantageous use as eyeglass-frame parts.Other References
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