Clad material
Patent 4450210 Issued on May 22, 1984. Estimated Expiration Date: 
October 21, 2002. 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.
October 21, 2002. 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 References1346190 InventorsApplicationNo. 06/435875 filed on 10/21/1982US Classes:428/660, Refractory (Group IVB, VB, or VIB) metal-base component420/442, Chromium containing428/680, Ni-base component968/364Materials or processes of manufacturing pocket watch or wrist watch cases (machines or tools for the manufacture of clockwork cases subclasses 709, 710, and 734; decoration or tools therefor subclass 391) [G04B 37/22]ExaminersPrimary: Lewis, MichaelAttorney, Agent or FirmInternational ClassesB32B 15/01 (20060101)G04B 37/00 (20060101) G04B 37/22 (20060101) C23C 24/00 (20060101) Foreign Application Priority Data1981-10-23 JPAbstractIn composition of a Ni-Ti type clad material, specified amount inclusion of Cu and Cr in the Ni base metallic sheath assures ideal coordination in annealing suitability and plastic workability between the sheath and the core with enhanced mechanical properties and resistance against corrosion of the product. | |
